50以内加减法计算的题目

50以内加减法计算的题目
50以内加减法计算的题目

50以内口算练习一

班级姓名分数 _____

26+9= 35+8= 17+13= 16+16= 29+15= 37+9= 8+28= 15+8= 44-9= 37-26= 14+7= 19+24= 26+18= 19+7= 27+18= 29+8= 4+16= 45+3= 6+38= 47-5= 43+7= 26+8= 19+26= 42+8= 36+9= 34-6= 25+7= 34+7= 27+9= 15-8= 16+9= 28+14= 19+28= 18+5= 29+11= 36-7= 33-17= 27+4= 28+3= 37-6= 49-18= 18+15= 29+15= 8+16= 17+14= 8+32= 24+7= 33+9= 42-18= 35+8= 33+5= 43-26= 26+9= 19+5= 43-8= 24+6= 9+19= 28+7= 14+17= 16+33= 32-9= 49-33= 18+23= 35+7= 5+36= 6+28= 9+20= 7+40= 5+45= 40+9= 10+16= 19+5= 10+40= 6+20= 38+5= 41-6= 7+25= 6+35= 16+28= 49+6= 28+5= 30+6= 18+5= 37+9= 25+7= 6+28= 40+7= 15+9= 9+24= 27+18= 16+15= 14+29= 35+7= 27+7= 8+40= 15+23= 42+7= 46+4= 27+14= 35+6=

50以内口算练习二

班级姓名分数 _____

43-6= 38-29= 41-37= 26+19= ()+5=32 27-9= 33-6= 44-25 = 25-6= 48-()=9 22-9= 12+28= 41-39= 42+8= 25+()=44 26-4= 37+9= 46-37= 20+17= 31-()=15 42-18= 17-18= 38-11= 47-18= 27-()=20 35-7= 40-4 = 14+26 = 36-19= 14+()=48 15+25= 36-18= 44-7 = 22+18 = ()+18=32 18+26= 34-10 = 18+18= 34-9= ()-12=30 7+25= 34-4= 11+39 = 31-16= ()-8=28 17+12 = 35-8= 16+13= 25+8= ()+15=38 9+22= 8+24= 27+15= 6+26= 35+6= 50-49= 40-18= 32-7= 30-16= 33-25=

9+14= 27+18= 17+27= 16+5= 25+17= 32-19= 26-18= 50-27= 40-16= 45-15= 19+16= 28+8= 27+16= 36+8= 35+8= 26-19= 31-18= 43-27= 50-16= 22-15= 9+28= 15+18= 17+24= 16+19= 5+29= 43-19= 23-8= 14+17= 32-16= 24-15= 9+30= 29+18= 17+28= 36+7= 4+29= 33-19= 42-8= 26-17= 33-16= 35-5=

50以内口算练习三

班级姓名分数 _____ 24-19= 35-18= 47-10= 42-3= 30-24= 29-13= 42-14= 13-4= 11-2= 14-10= 24+18= 25+17= 32+9= 7+25= 18+26= 44-6= 32-15= 41-25= 33-28 35-26= 7+17= 9+29= 39+6= 8+25= 38+9= 21-15= 42-36= 34-19= 46-9= 45-8= 40+7= 16+16= 18+18= 19+30= 17+27= 14-8= 25-6= 46-9= 27-18= 48-29= 9+19= 7+25= 8+36= 5+39= 43-8= 17-10= 36-10= 46-20= 36-30= 46-40= 10+40= 10+20= 10+30= 19+24= 17+25= 20-10= 29-1= 39-2= 49-3= 49-14= 28-15= 30-16= 38-27= 48-38= 28-9= 27-15= 37-26= 47-7= 37-28= 27-19= 26-2= 16-3= 36-4= 46-5= 36-6= 16-10= 35-1= 45-20= 35-30= 25-4= 20+7= 22+8= 24+9= 25+10= 28+11= 15-10= 44-18= 40-22= 34-3= 24-4=

23-15= 39-26= 40-17= 49-18= 49-29=

50以内口算练习四

班级姓名分数 _____ 20+12= 22+13= 24+14= 25+15= 26+16= 25-5= 35-6= 45-27= 35-18= 25-9= 48-10= 47-18= 27-20= 37-30= 37-14= 23+17= 32+18= 43+3= 43+4= 43+5= 49-10= 38-12= 48-28= 38-33= 28-4= 30+16= 33+17= 44+4= 24+15= 40+6= 33-25= 23-16= 43-17= 30-18= 32-9= 43+7= 42+8= 24+9= 34+10= 24+11= 43-10= 32-11= 42-20= 42-40= 32-5= 34+12= 24+13= 14+14= 24+15= 14+16= 41-12= 31-2= 41-30= 31-24= 21-5= 40-26= 25 +7= 24+17= 27+19= 45-28= 25-9= 33-14= 42-17= 31-6= 43-15= 26+9= 18+14= 28+15= 9+31= 41-27= 31-19= 32-8= 46-7= 33-6= 35-15= 26-7= 33-27= 27+14= 18+13= 37-16= 10+26= 9+25= 41-37= 26+10= 8+25= 19-8= 28+5= 29+15= 18+16= 17+14=

16-9= 33+6= 43-27= 35-6= 42-15=

50以内口算练习五

班级姓名分数 _____ 13+25= 33-16= 36+9= 19+15= 30-28= 40+6= 19+9= 38+7= 29-7= 16+33= 43-19= 35-18= 26+5= 42-13= 31-14= 32-19= 39-32= 46+3= 25+17= 35+6= 33-19= 43-28= 30+4= 42-26= 44-35= 36+8= 46-28= 27+4= 35+5= 34+9= 44-6= 7+32= 47-10= 26+8= 19+16= 28+5= 31-3= 18+25= 27+9= 15+27= 32-18= 29+2= 45-27= 34-26= 31-15= 41-19= 35-8= 37-10= 42-34= 41-28= 21-13= 32-14= 29+8= 31+12= 34-10= 39-15= 49-26= 40+7= 37-8= 39-29= 18-10= 17-1= 17-2= 17-3= 17-4= 20+17= 22+18= 30+13= 13+24= 23+15= 19-10= 28-10= 28-23= 48-30= 38-24= 31+16= 32+17= 46+4= 14+25= 34-6= 23-5= 33+16= 43-27= 43-18= 35-29=

33-10= 42-13= 32-23= 32-24= 42-24=

34+12= 24+13= 14+18= 24+15= 34+16=

50以内口算练习六

班级姓名分数 _____

43-26= 28-19= 31-17= 33+9= ()+25=42 27-19= 43-26= 44-15 = 35-6= 48-()=29 32-9= 42+8= 31-9= 44+28= 15+()=34 36-14= 27+9= 46-27= 23+17= 31-()=5 42-18= 37-18= 38-21= 47-28= 37-()=20 35-17= 30-14 = 34+6 = 36-29= 14+()=48 15+25= 36-18= 34-17 = 42+8 = ()+18=32 28+6= 34-10 = 28+18= 34-19= ()-12=23 7+25= 44-24= 16+29 = 31-16= ()-8=38 17+13 = 45-18= 26+30= 25+18= ()+15=38 34-18= 45-17= 35+6= 42-18= ()-18=24 38-19= 49-18= 37-29= 34+12= 46-18=

29+14= 27+18= 17+17= 26+15= 25+17=

22-19= 36-18= 45-27= 44-26= 31-25=

19+16= 18+18= 27+16= 26+18= 25+8=

46-19= 21-8= 33-17= 45-36= 32-15=

19+18= 25+18= 17+14= 36+9= 15+19=

43-19= 33-18= 40-27= 32-16= 34-15=

19+13= 19+18= 17+18= 16+17= 24+19=

31-19= 42-18= 46-37= 43-26= 45-25=

50以内口算练习七

班级姓名分数 _____ 24-19= 25-8= 47-13= 32-30= 41-40= 31-23= 42-34= 33-14= 31-12= 44-30= 24+8= 25+7= 32+9= 27+15= 18+26= 44-16= 32-5= 41-25= 33-28= 35-16= 17+17= 19+29= 19+26= 18+25= 28+19= 21-5= 32-16= 44-19= 36-29= 35-28= 41+7= 16+16= 23+18= 29+13= 17+27= 34-18= 45-36= 46-29= 47-18= 38-19= 9+19= 17+15= 18+26= 25+`19= 43-38= 37-10= 36-17= 36-28= 36-35= 26-14= 18+11= 21+12= 31+13= 30+14= 21+15= 20-10= 39-10= 29-20= 29-13= 49-48= 31-23= 25-13= 28-15= 44-38= 25-18=

30-15= 31-17= 32-27= 41-29= 50-22=

32-18= 23-7= 25+17= 30-14= 43-35=

33-18= 18+8= 30-19= 18-8= 34-26= 30-9= 45-37= 31-4= 43-37= 39+3= 31-18= 24+18= 30-13= 34-15= 38-29= 42-16= 42+2 = 33-12= 33-18= 34-19= 31-18= 42-19= 30-15= 30-19= 35-37=

50以内口算练习八

班级姓名分数 _____ 42-16= 32-17= 41-13= 45-36= 44-26= 34-18= 44-26= 31-18= 40-25= 38+3= 45-17= 25+19= 40-20= 31-3= 40+8= 31-17= 27+16= 35-18= 40-15= 45-30= 42-17= 41-22= 32+15= 32-18= 25+14= 43-7= 37-19= 20+13= 38-19= 18+16= 33-18= 42-18= 42-25= 14+18= 31-15= 31-14= 25+19= 46-19= 36-18= 40-14= 33-16= 31-16= 40-36= 25+16= 33-14= 28+6= 37-8= 44-25= 28+15= 43-9= 31-9= 45-40= 30-16= 23-14= 34-7= 45-26= 36-19= 39-36= 47-45= 40+8= 40-19= 28-6= 28+9= 32-17= 42-25= 37-19= 33-24= 36-18= 23+18= 40-16=

33-16= 41-16= 50-19= 31-18= 32-30= 41-19= 30-17= 33-12= 32+8= 17+16= 46-38= 30-15= 29-16= 37-18= 31+8= 42-24= 32-16= 33-15= 18+23= 42-35= 45-19= 19+16= 50-15= 28-19= 27+19=

50以内口算练习九

班级姓名分数 _____ 35-23= 40-24= 43-25= 31-27= 40-29= 47-39= 32+19= 28-13= 32-16= 37-10= 33-14= 25-17= 30-16= 33-11= 26-9= 14-4= 48-15= 32-15= 30-15= 39-12= 40-8= 42-3= 20-8= 28-19= 30-8= 28+9= 35-18= 35+4= 30-16= 37-28= 41-7= 32-13= 42-36= 32-24= 32-5= 11+27= 24-19= 28-9= 39-4= 30-15= 38-19= 34-9= 25-8= 42-23= 32-15= 31-17= 36-19= 27-8= 31-16= 41-26= 33-14= 37-8= 28-19= 26-9= 34-9= 43-24= 35-7= 30-16= 30-25= 36-29= 24-5= 24-15= 32-15= 31-24= 35-19=

35-8= 32-21= 22-13= 32-15= 21-17= 40-9= 46-10= 37-8= 50-1= 34-6= 41-6= 36-24= 26-17= 32+13= 33-6= 37-8= 48-9= 44-5= 37-15= 34-29= 41-39= 33-24= 35-7= 40-26= 23+8= 36-19= 31-24= 32-28= 31-19= 41-35=

50以内口算练习十

班级姓名分数 _____ 32-18= 22-15= 30-25= 40-19= 50-28= 33-26= 32-23= 40-18= 37+15= 40-18= 41-24= 35-18= 16+18= 31-19= 50-36= 37-30= 42-28= 30-23= 16+27= 33-17= 46-7= 33-22= 32-17= 22+16= 33-14= 50-31= 34-25= 33+15= 47-25= 37-19= 42-6= 31-7= 34-6= 24-9= 50-9= 46-28= 37-19= 34-16= 35+14= 47+2= 40-27= 39-23= 31-28= 46-39= 45-27= 42-29= 21-5= 45-26= 21-18= 22-7= 44-38= 36-18= 23-8= 30-18= 21-9= 35-17= 34-19= 34-17= 31-16= 23+29=

29+2= 23+8= 41-25= 36-18= 42-14= 26+5= 43-25= 33+9= 24+17= 29+19= 38-9= 45-4= 37-27= 25+17= 41-22= 27+17= 31-13= 24+18= 35-27= 42-36= 6+38= 9+26= 34-18= 32+13= 41-24= 36-28= 15+8= 22+19= 35-18= 35-30= 6+40= 6+27= 29+18= 35-6= 33+9= 34-9= 18+27= 25+16= 36-17= 39-9=

50以内口算练习十一

班级姓名分数 _____ 33-27= 44-19= 19+25= 42-18= 35-17= 28+19= 35-19= 30+16= 17+18= 38+3= 27+15= 47-18= 29+14= 43-29= 27+16= 32-19= 19+26= 18+25= 27+14= 36-18= 28+16= 29+9= 34-17= 40+5= 38-18= 34-19= 48-9= 8+38= 23+19= 31-17= 26+17= 34-12= 41-30= 35+6= 45-18= 26+16= 31-12= 46-29= 40+8= 46-28= 45-17= 33-17= 42-18= 37+4= 36-17= 35-18= 41-27= 43-29= 18+25= 30+13= 19+23= 44-27= 17+18= 43-18= 39+5=

46-29= 29+14= 25+18= 47-28= 19+26= 38+6= 24-18= 47-7= 22-13= 35-18= 43-40= 38-24= 12+30= 46-28= 37+5= 26+16= 45-29= 6+35= 42-24= 36+7= 26-18= 35-16= 32-16= 34-25= 48-29= 29+13= 22-5= 34+9= 26+17= 32+8= 37-17= 32-10= 27+16= 30+16= 36-17= 19+16= 28+15= 28+17= 34+13= 33-14= 31-12= 41-26= 32-7= 47-39= 36+6=

50以内口算练习十二

班级姓名分数 _____ 25+16= 35-19= 19+18= 17+27= 16+28= 33+6= 18+14= 36-12= 18+28= 31-16= 17+19= 30+20= 26+15= 34+17= 41-19= 33-18= 44-36= 42-18= 30+9= 45-27= 40-28= 42-34= 50-17= 48-28= 31-18= 28+8= 25-17= 35+15= 50-37= 47-19= 41-32= 22-14= 42-27= 22-15= 32-16= 31+8= 44-28= 27-18= 48-44= 32-25= 48-39= 24-17= 45-28= 31-13= 46-17= 41-26= 26-8= 37-19= 42-16= 35-16=

33-15= 47-39= 28-8= 47-29= 25-9= 33+13= 35-18= 33+6= 44+5= 38-29= 34-16= 34-26= 24-5= 45-44= 46-19= 31-15= 42-26= 44-19= 36-19= 35-28= 40+9= 26+8= 30+18= 29+16= 27+18= 24-9= 35-17= 46-18= 47-19= 39-9= 19+9= 17+27= 38+8= 26+9= 34-18= 37-12= 46-7= 36+12= 26-16= 46-25= 31-17= 35-23= 50-7= 43-26= 44-15= 34-26= 48-39= 37-16= 26-15= 42+8=

50以内加减混合运算习题十三

21 + 24 = ( ) ( ) + 13 = 47 ( ) + 24 = 47 2 + ( ) = 3 14 + 36 = ( ) 10 + ( ) = 30 5 + 30 = ( ) 12 + ( ) = 24 ( ) + 1 = 50 7 + 36 = ( ) 47 + 3 = ( ) 21 + 19 = ( ) ( ) + 32 = 47 44 + ( ) = 49 43 + 3 = ( ) 6 + 16 = ( ) ( ) + 1 = 5 2 + ( ) = 34

34 + 11 = ( ) 7 + 3 = ( ) 20 + 5 = ( )

35 + 14 = ( ) 13 + ( ) = 22 11 + ( ) = 37 2 + 43 = ( ) 10 + 37 = ( ) 15 + 6 = ( ) ( ) + 14 = 27 5 + 43 = ( ) 41 + 7 = ( ) 34 + 9 = ( ) 17 + 30 = ( ) ( ) + 14 = 37 2 + 45 = ( ) 37 + 5 = ( ) 42 + ( ) = 47 1 + 47 = ( ) 16 + ( ) = 49 47 + 1 = ( ) ( ) + 3 = 27 16 + 2 = ( ) 13 + 23 = ( ) ( ) + 2 = 15 42 + ( ) = 43 46 + ( ) = 48 ( ) + 17 = 45 31 + ( ) = 49 ( ) + 17 = 40 27 + ( ) = 47 7 + 6 = ( ) 37 + 10 = ( ) 40 + ( ) = 44 ( ) + 12 = 25 26 + ( ) = 41 35 + 10 = ( ) ( ) + 36 = 48 ( ) + 7 = 48

( ) + 3 = 48 21 + 11 = ( ) 30 + 12 = ( ) 1 + ( ) = 28 23 + ( ) = 37 20 + 27 = ( ) 5 + 3 = ( ) 20 + ( ) = 29 7 + ( ) = 11 20 + 19 = ( ) 24 + ( ) = 32 25 + 11 = ( ) ( ) + 5 = 35 24 + 11 = ( ) ( ) + 2 = 48 ( ) + 26 = 39 40 + 3 = ( ) 14 + ( ) = 44 44 + ( ) = 45 ( ) + 5 = 41 11 + 25 = ( ) 10 + ( ) = 14 40 + 5 = ( ) 14 + ( ) = 22 38 + ( ) = 42 1 + ( ) = 16 24 + ( ) = 34 15 + ( ) = 36 5 + 16 = ( ) 46 + ( ) = 50 12 + 15 = ( ) 6 + 38 = ( ) 49 + 1 = ( ) 40 + ( ) = 43 5 + 42 = ( ) 24 + 23 = ( ) ( ) + 10 = 45 ( ) + 1 = 18 1 + 2 = ( ) ( ) + 9 = 43 ( ) + 31 = 49 ( ) + 13 = 28

23 + ( ) = 46

100以内加减法竖式计算题

1 9 3 7 3 6 8 2 4 3 5 8 +7 1 +5 7 + 4 7 -7 6 -1 4 -2 9 5 7 7 1 1 1 9 5 2 9 9 6 -1 8 -5 4 +8 9 -4 9 +4 9 -4 7 5 8 5 2 2 9 1 7 3 3 6 2 -2 9 +2 9 +4 5 +5 6 +5 8 +2 8 7 2 6 9 7 1 2 6 4 7 4 3 -6 5 +2 7 +1 9 -1 9 -3 8 -1 8 5 8 1 3 6 8 9 7 5 9 9 8 -3 9 +6 7 -3 9 -5 8 +1 5 -4 9 5 6 1 8 6 1 6 3 1 3 9 4 -3 9 +7 4 -2 2 -2 8 +3 8 -3 9 4 2 2 7 9 7 9 3 6 1 4 6 -2 3 -1 8 - 5 8 -2 8 -2 8 +1 5

3 2 3 8 9 4 6 1 1 1 2 7 -1 8 + 5 1 - 6 6 +2 9 +6 9 +6 6 5 7 4 4 6 1 9 7 7 8 3 2 -2 8 -2 9 +1 9 -1 8 -6 9 +4 9 1 9 5 7 7 7 6 9 7 7 2 2 +5 9 -2 8 -1 9 +1 7 -6 8 +4 6 5 8 4 2 2 5 6 3 6 6 9 8 +2 9 +2 9 +6 8 +1 9 +2 6 -6 9 4 4 3 3 7 1 7 3 3 9 2 9 +2 9 +3 9 -6 4 - 5 4 +3 3 +5 7 4 3 4 8 8 7 8 3 1 9 9 4 -1 5 +2 2 -3 8 - 3 5 + 6 3 -2 7 2 6 4 6 2 1 7 5 5 5 5 7 +6 4 -2 7 -1 2 - 3 9 --3 8 +3 3

三年级小数加减法竖式计算题库

1.小数数位相同的加减法(竖式计算) 27.38+4.83= 26.75+2.83= 3.64-2.58= 6.52-3.44= 15.31+13.51= 9.03-8.57= 5.5+4.5= 3.27-2.49= 11.65-7.39= 19.01-7.99= 7.51+0.49= 9.03-8.57= 5.48-3.25= 4.8+18.9= 10.3+58.7= 8.03-4.56= 8.25+1.55= 9.43-9.05= 1.75+ 2.08= 4.28- 3.37=

4.13+2.24= 5.16+7.89= 4.17+2.53= 5.07-0.98= 5.67-0.73= 13.18+5.27= 2.小数数位不同的加减法 26.8+3.02= 6.07-4.993= 3.7+2.36= 15.4+2.97= 10.2-8.75= 12.7+6.58= 7.3-2.25= 3.8+3.54= 3.05-2.9= 3.1-2.07= 7.81-3.735= 12.16+5.347= 0.4-0.125= 18.7+3.96=

9.6+4.78= 62.1-17.07= 5.67-0.845= 0.506-0.19= 11.04-7.3= 1.4-0.405= 1.4-0.405= 3.906+0.66= 43.5-27.34= 15.98-3.9= 75.6-3.55= 10.1-0.55= 5.94+10.7= 12.03+0.875= 37.8+3.02= 0.704-0.25= 3.整数与小数的加减法 10+10.1= 27+8.03= 26+7.98= 13.99+1=

100以内加减法带答案

题目 17 + 13 = 90 - 19 = 3 + 28 = 27 + 37 = 98 - 11 = 49 + 18 = 4 + 11 = 98 - 50 = 50 + 7 = 11 + 50 = 93 - 47 = 47 + 25 = 17 + 37 = 62 - 26 = 8 + 2 = 24 + 9 = 66 - 41 = 9 + 20 = 43 + 5 = 77 - 35 = 17 + 6 = 34 + 8 = 67 - 22 = 40 + 17 = 8 + 12 = 60 - 10 = 8 + 5 = 49 + 40 = 84 - 46 = 13 + 50 = 15 8 = 71 - 46 = 14 + 1 = 14 + 27 = 95 - 27 = 33 + 19 = 47 + 7 = 76 - 41 = 23 + 22 = 21 + 6 = 98 - 14 = 17 + 14 = 5 + 23 = 86 - 5 = 2 + 3 = 33 + 22 = 98 - 20 = 45 + 46 = 16 + 30 = 76 - 50 = 2 + 30 = 5 + 22 = 74 - 42 = 19 + 40 = 41 + 49 = 95 - 34 = 14 + 9 = 13 + 49 = 67 - 22 = 7 + 47 =

10 + 33 = 96 - 31 = 1 + 8 = 38 + 22 = 82 - 28 = 49 + 20 = 21 + 7 = 63 - 8 = 44 + 46 = 12 + 40 = 61 - 27 = 7 + 41 = 15 + 11 = 79 - 48 = 22 + 6 = 21 + 11 = 85 - 45 = 36 + 18 = 24 + 36 = 78 - 37 = 37 + 11 = 16 + 7 = 71 - 29 = 25 + 33 = 21 + 19 = 61 - 37 = 24 + 4 = 27 + 5 = 75 - 5 = 24 + 17 = 7 + 33 = 69 - 42 = 35 + 30 = 8 + 44 = 80 - 28 = 33 + 8 = 59 + 23 = 96 - 5 = 7 + 14 = 33 + 21 = 83 - 39 = 32 + 35 = 3 + 2 = 70 - 1 = 28 + 47 = 40 + 13 = 83 - 3 = 47 + 46 = 29 + 5 = 93 - 10 = 29 + 31 = 55 + 39 = 76 - 49 = 50 + 2 = 40 + 23 = 84 - 27 = 37 + 40 = 8 + 19 = 61 - 34 = 31 + 16 =

小学二年级加减混合竖式练习题200道

37+46—54= 81—32—27= 42—34+57= 37+34—30=28+35+23=76+18—55= 72—44—14= 19+32+39= 46+29—37= 44—32+68= 78—24+39= 64+20-56= 27+46—54= 61—12—27= 52—34+47= 44—27+16= 60-49+28= 15—6+36= 73—40+20= 20+6—17=

18+4—15= 45+25+27= 90—56—25= 12+30—23= 56—42—8= 56+43—89= 23+65—18= 98—76—14= 63—48+26= 63+17—28= 63—28+17= 42+6—29= 40+19+12= 92-47-18= 37+34—14= 86—37—25= 69—20+37= 83—20—35= 67—8+16= 58—26+12=

65+28-46= 85-70+16= 60-13+27= 68-35+49= 76+18-56= 67-23+37= 69-4+23= 91-87+57= 65+28-46= 85-70+16= 60-13+27= 68-35+49= 15+68-39= 59+31-51= 82-69+77= 46-26+14= 81+13-44= 62-57+94= 64-39+13= 99-34+18=

1+99-68= 80+12-69= 97-36+32= 77+17-20= 77+15-54= 37+26-28= 77-64+67= 13-7+61= 17+80-47= 77+11-54= 59-33+46= 67+23-78= 30+45-69= 1+90-81= 47-35+63= 45-44+48= 98-35+27= 5+88-38= 38+34-59= 51+29-67=

100以内加减法方法

100以内加减法快速算算法 方法:两位数加两位数的进位加法:口诀:加9要减1,加8要减2,加7要减3,加6要减4,加5要减5,加4要减6,加3要减7,加2要减8,加1要减9(注:口决中的加几都是说个位上的数)。 例:26+38=64 解:加8要减2,谁减2?26上的6减2.38里十位上的3要进4.(注:后一个两位数上的十位怎么进位,是1我进2,是2我进3,是3我进4,依次类推.那朝什么地方进位呢,进在第一个两位数上十位上.如本次是3我进4,就是第一个两位数里的2+4=6.)这里的26+38=64就是6-2=4写在个位上,是3 第一讲加法速算 一.凑整加法 凑整加法就是凑整加差法,先凑成整数后加差数,就能算的快.8+7=15 计算时先将8凑成10 8加2等于10 7减2等于5 10+5=15 如17+9=26 计算程序是17+3=20 9-3=6 20+6=26 二.补数加法 补数加法速度快,主要是没有逐位进位的麻烦.补数就是两个数的和为10 100 1000 等等.8+2=10 78+22=100 8是2的补数,2也是8的补数,78是22的补数,22也是78的补数.利用补数进行加法计算的方法是十位加1,个位减补. 例如6+8=14 计算时在6的十位加上1,变成16,再从16中减去8的补数2就得14 如6+7=13 先6+10=16 后16-3=13 如27+8=35 27+10=37 37-2=35 如25+85=110 25+100=125 125-15=110 如867+898=1765 867+1000=1867 1867-102=1765 三.调换位置的加法 两个十位数互换位置,有速算方法是:十位加个位,和是一位和是双,和是两位相加排中央.例如61+16=77,计算程序是6+1=7 7是一位数,和是双,就是两个7,61+16=77 再如83+38=121 计算程序是8+3=11 11就是两位数,两位数相加1+1=2排中央,将2排在11中间,就得121.

小学二年级加减混合竖式练习题200道

78—24+39 = 44 —27 + 16= 37+46 —54= 76+18 —55= 81 —32 —27= 72 —44 — 14= 64+20 —56 = 60 —49 + 28= 42—34+57= 27+46 —54= 37+34 —30 = 46+29 —37= 61 —12 — 27= 73—40+20= 19+32+39= 15—6+36=

78—24+39 = 44 —27 + 16= 28+35+23 = 44—32+68= 52 — 34+47= 20+6 —17=

63—28+17= 86 — 37 —25= 56 —42 — 8= 63+17 —28= 37+34 —14= 58—26+12= 18+4 —15= 56+43 —89= 23+65 —18= 42+6 — 29= 69—20+37= 90 — 56 —25= 98 — 76 — 14= 40+19+12= 83 —20 — 35= 12+30 —23= 63—48+26= 92 — 47 — 18 = 67—8+16= 45+25+27=

60-13+27= 46-26+14= 76+18-56= 85-70+16= 82-69+77= 99-34+18= 65+28-46= 85-70+16= 60-13+27= 68-35+49= 67-23+37= 69-4+23= 91-87+57= 65+28-46= 68-35+49= 15+68-39= 59+31-5 仁 81+13-44= 62-57+94= 64-39+13=

1+99-68= 37+26-28= 59-33+46= 45-44+48= 80+12-69= 77-64+67= 67+23-78= 98-35+27= 97-36+32= 13-7+61 = 30+45-69= 5+88-38= 77+17-20= 17+80-47= 1+90-81 = 38+34-59= 77+15-54= 77+11-54= 47-35+63= 51+29-67=

五年级数学小数加减法计算题简便计算

五年级数学小数加减法计算题(简便计算) 13.6+7.84+6.4 38.7-14.47-5.53 8.5+9.9 1.31+4.7+0.69+5.3 1.25+3.7+0.75 5.6-0.18-1.2 7.08+16+8.2 10+0.009+0.191 3.75-0.75-1.25 80-19.4-8.09-3.51 5.6+0.5-5.6+0.5 7.2+5.6-2.8 34.5-(17.2+4.5) 27.3+73.2+72.7 585+189+215 5.85-1.75- 0.25 768-274-126 5.85+1.89+2.15 24.8+14.6+15.4 42.5-22.17-7.83 3.8+1.37+6.2+12.63 45.55-(6.82+15.55) 34.52-17.87-12.23

4.57+3.17+3.43+ 5.83 23.75-8.64-3.36 17.83-9.5-7.83-0.5 3.45+8.7+16.55+1.3 8.54-5.96 27.38-5.34+2.62-4.66 21.63-(8.5+9.63) 45.55-(6.82+15.55) 34.52-17.87-12.23 4.7+3.17+3.43+ 5.83 23.75-8.64-3.36 17.83-9.5-7.83-0.5 3.45+8.7+1 6.55+1.3 2 7.38-5.34+2.62-4.66 21.63-( 8.5+ 9.63)

4.32-(1.26+2.34) 2.5+3.25+0.75+7.5 2.53+1.79+ 3.47 10.08- 4.79-1.21 17.05-(2.05-6.4) 3.73+5.28+ 4.27+4.72 103 +10017+100029 108米-1008米-1000 8米 3元5角+2元5角-1元8角3分 9.4+0.3-6.4 15.25+4.72+4.75+5.28 34.82-(4.82+15.2) 12.7-4.8-5.2 3.1+25.78+6.9 73.8-1.64-13.8-5.36 45.55-(6.82+15.55) 34.52-17.87-12.23 4.57+3.17+3.43+ 5.83 23.75-8.64-3.36 17.83-9.5-7.83-0.5

100以内加减法练习(打印版)

2+6=29-7=33+2=3+40=15+4=23+5=37+3=29-3=38-3=15-4=18-2=30+8=43+1=86+2=70+3=30-2=72-2=66-4=39-2=20-9=53+5=35+2=39-4= 8+50= 20-1= 40+6= 62+7= 89-5= 63+3= 34-2= 50-4= 11+2= 53-3= 60+8= 80-7= 32+4= 26-5= 84+4= 35-10= 71+9= 18-4= 66+10= 83-3= 71+5= 60-5= 36+3= 58+30= 28-7= 87-10= 80-6= 11+9= 80-3= 95-4= 64+3= 98-4= 25+7= 62-2= 83+5= 83+10= 10+8= 56+20= 64+6= 65+3= 15-3= 30-3= 32+6= 29-7= 35+2= 73+4= 25+4= 43+5= 87+10= 39-3= 48-30= 95-40= 81-2= 60+8= 39+10= 76+10= 70+30= 48-9= 47-8= 52-4= 43-8= 68-9= 40-2= 27-9= 32-4=

41-2=38-9=50-8=63-9=37-8=56-20=88-9=75-9=92-3=42-7=71-6=58-10=47-8=26-7=52-3=69-10=63-5=80-2=36-9=78-4=65-8=99-9=72-2= 45-9= 86-8= 96-2= 24-9= 40-2= 46-9= 43-4= 18-2= 38-8= 35+5= 85+2= 59-4= 78+10= 82-5= 64+6= 32+7= 49-5= 63+3= 84-2= 60-4= 11+20= 45-3= 30+8= 60-7= 25+4= 36-5= 84+4= 52-3= 71+9= 88-4= 76+0= 93-3= 18+5= 70-5= 56+20= 64+6= 65+3= 15-3= 30-3= 32+6= 29-7= 35+2= 73+4= 25+4= 43+5= 87+10= 39-3= 48-30= 95-40= 81-2= 60+8= 39+10= 76+10= 70+30= 48-9= 47-8= 52-4= 43-8= 68-9= 40-2= 27-9= 32-4= 41-2= 38-9= 30-2=

(完整版)小数加减法竖式计算题库.docx

小数加减法的训练:(B) 1. 小数数位相同的加减法(竖式计算)7.51+0.49=9.03-8.57= 27.38+4.83=26.75+ 2.83= 3.64-2.58= 6.52-3.44= 5.48-3.25= 4.8+18.9= 1 5.31+13.51=9.03-8.57=10.3+58.7=8.03-4.56= 5.5+4.5= 3.27-2.49= 8.25+1.55=9.43-9.05= 11.65-7.39=19.01-7.99= 1.75+2.08= 4.28-3.37=

4.13+2.24= 5.16+7.89= 10.2-8.75=12.7+6.58= 4.17+2.53= 5.07-0.98= 7.3-2.25= 3.8+3.54= 5.67-0.73=13.18+5.27= 3.05-2.9= 3.1-2.07= 小数加减法的训练:(B) 2.小数数位不同的加减法 26.8+3.02= 6.07-4.993=7.81-3.735=12.16+5.347= 3.7+2.36=15.4+2.97= 0.4-0.125=18.7+3.96=

9.6+4.78=62.1-17.07= 75.6-3.55=10.1-0.55= 5.67-0.845=0.506-0.19= 5.94+10.7=12.03+0.875= 11.04-7.3= 1.4-0.405= 37.8+3.02=0.704-0.25= 1.4-0.405= 3.906+0.66=小数加减法的训练:(B) 3. 整数与小数的加减法 10+10.1=27+8.03= 43.5-27.34=15.98-3.9=

100以内加减法直接打印版

53-31= 20+54= 36+31= 54+40= 96-36= 44+44= 41+32= 24+42= 79-51= 98-65= 95-24= 32+48= 60+29= 93-46= 46+52= 97-61= 80-23= 77-25= 92-48= 100-45= 姓名:时间:得分: 50-24= 53+34= 44-24= 75-31= 30+24= 82-31= 70-26= 66-34= 63-29= 29+58= 45+26= 35+60= 21+42= 38+32= 72-41= 32+67= 72-44= 39+40= 63+23= 93-49= 姓名:时间:得分: 91-52= 92-26= 78-39= 37+21= 94-56= 80-54= 54+22= 45+51= 97-55= 28+26= 78-50= 99-76= 99-52= 29+24= 38+43= 37+43= 54-31= 39+29= 35+20= 86-50= 姓名:时间:得分: 92-29= 41+55= 67-21= 78-31= 59-28= 58+24= 36+54= 76-54= 57-24= 24+61= 34+43= 99-41= 99-72= 42+37= 93-44= 20+31= 81-58= 43+43= 46+46= 79-48=

22+20= 38+59= 31+49= 65-33= 55+20= 66+34= 29+27= 83-43= 85-54= 22+60= 59+29= 43+38= 60+37= 100-62= 31+43= 58+32= 94-28= 48+49= 63+22= 56+29= 姓名:时间:得分: 75+25= 78-30= 65-39= 29+60= 78-21= 28+53= 69-23= 92-37= 31+28= 33+45= 54+23= 97-64= 27+54= 93-41= 34+33= 76-31= 27+33= 46+34= 56+28= 72-31= 姓名:时间:得分: 53+22= 74-40= 32+30= 23+38= 34+50= 29+25= 24+39= 41+51= 32+66= 62+31= 45-23= 89-54= 61-41= 70-46= 88-58= 21+34= 35+36= 52+26= 100-47= 33+64= 姓名:时间:得分: 22+69= 26+46= 27+62= 55+39= 26+74= 81-41= 53+29= 77-56= 22+21= 59+24= 35+62= 96-59= 31+50= 27+64= 34+22= 85-34= 86-29= 32+31= 35+48= 33+37=

小学三年级加减法竖式计算题

一、计算(请用竖式计算法) 1)995-775=2)985-807= 3)136+471=4)345+427= 5)622+190=6)437+270= 7)683+181=8)903-786= 9)81+519=10)525-412=

11)736-675=12)461+433=13)833-73 2= 14)961-600=15)718-608=16)188-14= 17)166+262=18)419+489=19)811-79 6= 20)230-177= 21)736-675=22)728-608= 23)833-732=24)962-600=25)429+489=

27)266+262= 29)822-796=30)230-177= 31)736-675=32)463+433= 33)833-732=34)963-600=

35)738-608=36)388-34= 37)366+262=38)439+489= 39)833-796=40)230-177= 41)736-675=42)464+433=

43)833-732=44)964-600= 45)748-608=46)488-44= 47)466+262=48)449+489= 49)844-796=50)230-177=

51)736-675=52)465+433= 53)833-732=54)965-600= 55)758-608=56)588-54= 57)566+262=58)459+489= 59)855-796=60)230-177=

小数加减法竖式计算大全50

6.58-0.37 = 6.58 - 0.37 ———— 0.9+0.41 = 0.90 + 0.41 ———— 9.93-4.5 = 9.93 - 4.50 ———— 0.845+0.457 = 0.845 + 0.457 ————6.3-0.81 = 6.30 - 0.81 ———— 0.88-0.67 = 0.88 - 0.67 ———— 8.96-3.39 = 8.96 - 3.39 ———— 0.966+0.507 = 0.966 + 0.507 ———— 4.71+0.13 = 4.71 + 0.13 ———— 0.93-0.68 = 0.93 - 0.68 ———— 9.15-2.5 = 9.15 - 2.50 ———— 0.836-0.43 = 0.836 - 0.430 ————

2.73 - 0.19 ———— 0.9-0.48 = 0.90 - 0.48 ———— 8.17+2 = 8.17 + 2.00 ———— 0.8+0.116 = 0.800 + 0.116 ———— 1.28 + 0.55 ———— 0.98+0.16 = 0.98 + 0.16 ———— 8.01-2.17 = 8.01 - 2.17 ———— 0.822+0.437 = 0.822 + 0.437 ———— 1.82 - 0.65 ———— 0.96-0.36 = 0.96 - 0.36 ———— 8.11+2.57 = 8.11 + 2.57 ———— 0.986+0.638 = 0.986 + 0.638 ————

3.34 + 0.26 ———— 0.9+0.11 = 0.90 + 0.11 ———— 8.99+2.49 = 8.99 + 2.49 ———— 0.836-0.298 = 0.836 - 0.298 ———— 3.77 + 0.81 ———— 0.82+0.33 = 0.82 + 0.33 ———— 9.34-3.89 = 9.34 - 3.89 ———— 0.924-0.6 = 0.924 - 0.600 ———— 9.95 - 0.65 ———— 0.85-0.63 = 0.85 - 0.63 ———— 9.35-4.49 = 9.35 - 4.49 ———— 0.886+0.607 = 0.886 + 0.607 ————

100以内加减法口算技巧及6套练习

100以内加减法口算技巧及6套练习 一、 进位加法的简单计算方法 不管多大的数相加其最基本的原则都是 20以内的加法原则,20以内进位加法的速算口诀为:几 加九进十减一、几加八进十减二、几加七进十减三、几加六进十减四 。由于加法具有交换律,所以 我们只需要记住这几句就可以了, 在100以内的加法中,先观察两个各位数字,找出他们中间较大的 数,按口诀进行计算可以很快的算出答案。 [例 1] : 26+39= 我们观察发现两个各位数字分别是 6和9, 6+9大于10,需要进位,较大的是9,所以应用“几 加九进十减一”得到答案的十位就是 2+3+仁6,个位就是给6减1等于5,所以答案就是65. [例 2]: 38+54= 我们观察发现两个各位数字分别是 8和4, 8+4大于10,需要进位,较大的是8,所以应用“几 加八进十减二”得到答案的十位就是 3+5+1=9,个位就是给4减2等于2,所以答案就是92. 下来我们进行几个对应的练习,看谁算的又对又快: 9+5= 3+8= 26+55= 34+49= 67+25= 58+19= 39+25= 26+38= 19+4仁 28+47= 43+39= 36+56= 二、 退位减法的简答计算方法 100以内数的退位减法也是以20以内数的退位减法为基础的,退位减法的速算口诀为:几减九 退十加一、几减八退十加二、几减七退十加三、几减六退十加四、几减五退十加五、几减四退十加六、 几减三退十加七、几减二退十加八、几减一退十加九。由于减法中减数和被减数不能交换位置,所以 在减法中,先观察两个个位数,当减数比被减数的个位大时,根据减数的各位选择口诀进行计算,即 可以很快的算出答案。 [例 3] : 54 —29= 我们通过观察发现被减数的个位是 4,减数的个位是9, 4<9,需要退位,所以应用“几减九退十 加一”得到答案的十位就是5—2—1=2,个位就是给4+仁5,所以得到答案为25. [例 4] : 63 —16= 我们通过观察发现被减数的个位是 3,减数的个位是6, 3<6,需要退位,所以应用“几减六退十 加四”得到答案的十位就是6— 1 —1=4,个位就是给3+4=7,所以得到答案为47. 下来我们进行几个对应的练习,看谁算的又对又快: 54—35= 66— 38= 时间: 14—9= 31— 22= (50题)练习一: 15—6= 23 - 45 —28= 88 - -18= —39= 43—19= 72—36=

两位数加减法竖式计算练习题

+7 1 +5 7 +4 7 -7 6 -1 4 -2 9 5 7 7 1 1 1 9 5 2 9 9 6 -1 8 -5 4 +8 9 -4 9 +4 9 -4 7 5 8 5 2 2 9 1 7 3 3 6 2 -2 9 +2 9 +4 5 +5 6 +5 8 +2 8 7 2 6 9 7 1 2 6 4 7 4 3 -6 5 +2 7 +1 9 -1 9 -3 8 -1 8 5 8 1 3 6 8 9 7 5 9 9 8 -3 9 +6 7 -3 9 -5 8 +1 5 -4 9 5 6 1 8 6 1 6 3 1 3 9 4 -3 9 +7 4 -2 2 -2 8 +3 8 -3 9 4 2 2 7 9 7 9 3 6 1 4 6 -2 3 -1 8 - 5 8 -2 8 -2 8 +1 5 3 2 3 8 9 4 6 1 1 1 2 7 -1 8 + 5 1 - 6 6 +2 9 +6 9 +6 6

1 9 5 7 7 7 6 9 7 7 2 2 +5 9 -2 8 -1 9 +1 7 -6 8 +4 6 5 8 4 2 2 5 6 3 6 6 9 8 +2 9 +2 9 +6 8 +1 9 +2 6 -6 9 4 4 3 3 7 1 7 3 3 9 2 9 +2 9 +3 9 -6 4 - 5 4 +3 3 +5 7 4 3 4 8 8 7 8 3 1 9 9 4 -1 5 +2 2 -3 8 - 3 5 + 6 3 -2 7 2 6 4 6 2 1 7 5 5 5 5 7 +6 4 -2 7 -1 2 - 3 9 --3 8 +3 3 4 7 6 7 7 4 6 4 4 7 2 9 +4 8 +1 4 +1 9 -1 8 +2 7 +6 1 8 7 2 6 2 1 7 7 4 6 8 7 -3 8 +4 6 -1 9 -4 8 +3 4 -6 9 4 2 9 6 6 2 5 4 2 5 2 6

小数加减法计算题库

四年级下册计算题库(一)——小数的加法和减法 1.小数数位相同的加减法(竖式计算) 27.38+4.83= 26.75+2.83= 3.64-2.58= 6.52-3.44= 15.31+13.51= 5.5+4.5= 3.27-2.49= 11.65-7.39= 19.01-7.99= 7.51+0.49= 5.48-3.25= 4.8+18.9= 10.3+58.7= 8.03-4.56= 9.03-8.57= 8.25+1.55= 9.43-9.05= 1.75+2.08= 4.28-3.37= 4.13+2.24= 4.17+2.53= 5.07-0.98= 5.67-0.73= 13.18+5.27= 5.16+7.89= 2.小数数位不同的加减法(竖式计算) 26.8+3.02= 6.07-4.993= 3.7+2.36= 15.4+2.97= 10.2-8.75= 7.3-2.25= 3.8+3.54= 3.05-2.9= 3.1-2.07= 12.7+6.58= 7.81-3.735= 12.16+5.347= 0.4-0.125= 18.7+3.96= 9.6+4.78= 5.67-0.845= 0.506-0.19= 11.04-7.3= 1.4-0.405= 62.1-17.07= 1.4-0.405= 3.906+0.66= 43.5-27.34= 15.98-3.9= 75.6-3.55= 5.94+10.7= 12.03+0.875= 37.8+3.02= 0.704-0.25= 10.1-0.55= 3.整数与小数的加减法(竖式计算) 10+10.1= 27+8.03= 26+7.98= 13.99+1= 7.88+2 = 28-3.56= 10-0.81= 10-0.36= 20-0.92= 8-7.089= 95-9.85= 20-9.42= 35.09-11= 96.85-85= 45.45-45= 10-0.41= 45-0.45= 3.57+3= 4.小数加减混合运算(递等式计算) 5.03-2.5+0.96 22.8-5.23-9.125 23.66+4.34-3.56 5.6-0.81-1.29 15.9+3.26+4.17 67.2+41.5-71.39 10.75+0.4-9.473 16.23+8.92-7.56 50-28.5-13.45 13.79-9.653+170.57 1.5+0.68-0.306 72.8-8.6+5.84 20.8-(15.98-3.9) 32.5+(5.07+6.13) 3.52-(4.66-3.82) 5.小数加减简便运算(递等式计算) 0.9+1.08+0.92+0.1 5.26+3.43+0.74 5.6+2.7+4.4 20.15+7.62+7.85 51.27-8.66-1.34 48.14-2.43-7.57 18.76-3.47-0.53 5.17-1.8-3.2 70.8-1.25-1.75 4.02-3.5+0.98 4.25-0.83+0.75 23.04-0.8-13.4-6.2 15.13+4.92-5.13 3.98-1.5+6.02 4.8+1.2-4.8+1.2 30.99-(8.5+15.99) 72.6-(22.6+3.45) 36.06-(5+6.06)四年级下册计算题库(一)——小数的加法和减法 1.小数数位相同的加减法(竖式计算) 27.38+4.83= 26.75+2.83= 3.64-2.58= 6.52-3.44= 15.31+13.51= 5.5+4.5= 3.27-2.49= 11.65-7.39= 19.01-7.99= 7.51+0.49= 5.48-3.25= 4.8+18.9= 10.3+58.7= 8.03-4.56= 9.03-8.57= 8.25+1.55= 9.43-9.05= 1.75+2.08= 4.28-3.37= 4.13+2.24= 4.17+2.53= 5.07-0.98= 5.67-0.73= 13.18+5.27= 5.16+7.89= 2.小数数位不同的加减法(竖式计算) 26.8+3.02= 6.07-4.993= 3.7+2.36= 15.4+2.97= 10.2-8.75= 7.3-2.25= 3.8+3.54= 3.05-2.9= 3.1-2.07= 12.7+6.58= 7.81-3.735= 12.16+5.347= 0.4-0.125= 18.7+3.96= 9.6+4.78= 5.67-0.845= 0.506-0.19= 11.04-7.3= 1.4-0.405= 62.1-17.07= 1.4-0.405= 3.906+0.66= 43.5-27.34= 15.98-3.9= 75.6-3.55= 5.94+10.7= 12.03+0.875= 37.8+3.02= 0.704-0.25= 10.1-0.55= 3.整数与小数的加减法(竖式计算) 10+10.1= 27+8.03= 26+7.98= 13.99+1= 7.88+2 = 28-3.56= 10-0.81= 10-0.36= 20-0.92= 8-7.089= 95-9.85= 20-9.42= 35.09-11= 96.85-85= 45.45-45= 10-0.41= 45-0.45= 3.57+3= 4.小数加减混合运算(递等式计算) 5.03-2.5+0.96 22.8-5.23-9.125 23.66+4.34-3.56 5.6-0.81-1.29 15.9+3.26+4.17 67.2+41.5-71.39 10.75+0.4-9.473 16.23+8.92-7.56 50-28.5-13.45 13.79-9.653+170.57 1.5+0.68-0.306 72.8-8.6+5.84 20.8-(15.98-3.9) 32.5+(5.07+6.13) 3.52-(4.66-3.82) 5.小数加减简便运算(递等式计算) 0.9+1.08+0.92+0.1 5.26+3.43+0.74 5.6+2.7+4.4 20.15+7.62+7.85 51.27-8.66-1.34 48.14-2.43-7.57 18.76-3.47-0.53 5.17-1.8-3.2 70.8-1.25-1.75 4.02-3.5+0.98 4.25-0.83+0.75 23.04-0.8-13.4-6.2 15.13+4.92-5.13 3.98-1.5+6.02 4.8+1.2-4.8+1.2 30.99-(8.5+15.99) 72.6-(22.6+3.45) 36.06-(5+6.06)

100以内的加减法教案

100以内的加减法 教学目标 1、通过对学过的100以内数的加法和减法题比较归类,总结出计算的规律,提高学生的计算能力. 2、培养学生分析、综合能力. 3、养成认真负责、一丝不苟的好习惯. 教学重点和难点 重点:掌握100以内数的加法和减法计算法则,熟练地进行口算和笔算. 难点:在计算方法上发现规律,总结规律,提高计算能力. 教学过程设计 (一)课前谈话 师:今天我们复习学过的100以内数的加法和减法,并从中总结出解题的规律,希望大家仔细观察,用心思考,看谁掌握得又快又好. (二)复习口算 1.加法. (1)口算下面各题.(要求说出想的过程)

(2)观察以上6道题,从数字上看能归纳为几种情况? 教师要调动学生的积极性,使学生充分发表意见,归纳如下: 以上6道题可以归纳为两种情况: 第一种情况,两位数与整十数相加,有①、②两题. 第二种情况,两位数与一位数相加,有③~⑥.其中③,④两题是不进位加法, ⑤,⑥两题是进位加法. (3)虽然各题的线路不同,但想法一致,以上6道题在计算方法上,你发现什么规律。 在计算方法上发现它们的规律是:先把两位数分成整十数和一位数,再进行计算.2.减法. (1)口算下面各题.(要求说出想的过程) (2)观察以上4道题,从数字上看能归纳为几种情况? 以上4道题可以归纳为两种情况: 第一种情况,两位数减整十数,有①题. 第二种情况,两位数减一位数,有②,③,④题.其中②题是不退位减法,③, ④题是退位减法. (3)在计算方法上你能总结出规律吗? 在计算方法上发现要把被减数分成两部分,一部分是整十数,另一部分是一位数

或两位数(也就是十几),先做减法,再用所得的差与整十数相加. 3.练习. (1)用已经总结出来的计算规律口算下面各题,并口述计算过程: ①6+43=48 把43分成40和3,6加3得9,40加9得49. ②80+14=94 把14分成10和4,80加10得90,90加4得94. ③25+9=34 把25分成20和5,5加9得14,20加14得34. ④6+89=95 把89分成80和9,6加9得15,80加15得95. ⑤79-6=73 把79分成70和9,9减6是3,70加3得73. ⑥75-40=35 把75分成70和5,70减40得30,30加5得35. ⑦30-6=24 把30分成20和10,10减6得4,20加4得24. ⑧85-9=76 把85分成70和15,15减9得6,70加6得76.师:当我们熟练地掌握口算方法之后,就可以把计算过程省略,迅速准确地说出得数. (2)口算. 81-70 20+41 38-14 4+56 91-8 40—5 42+30 52+12 (三)复习笔算 1.列竖式计算下面各题.(可分组练习,做在练习本上,并指定6名学生做在投影片上每人写一道题.) 14+54= 48+25= 14+23= 87-25= 62-40= 70-12= 讨论:笔算加法和笔算减法有哪些地方相同?有哪些地方不同?(同桌的同学讨

三年级小数加减法竖式计算题库

学习必备欢迎下载1.小数数位相同的加减法(竖式计算) 27.38+4.83= 26.75+2.83= 3.64-2.58= 6.52-3.44= 15.31+13.51= 9.03-8.57= 5.5+ 4.5= 3.27-2.49= 11.65-7.39= 19.01-7.99= 7.51+0.49= 9.03-8.57= 5.48-3.25= 4.8+18.9= 10.3+58.7= 8.03-4.56= 8.25+1.55= 9.43-9.05= 1.75+ 2.08= 4.28- 3.37=

4.13+2.24= 5.16+7.89= 4.17+2.53= 5.07-0.98= 5.67-0.73= 13.18+5.27= 2.小数数位不同的加减法 26.8+3.02= 6.07-4.993= 3.7+2.36= 15.4+2.97= 10.2-8.75= 12.7+6.58= 7.3-2.25= 3.8+3.54= 3.05-2.9= 3.1-2.07= 7.81-3.735= 12.16+5.347= 0.4-0.125= 18.7+3.96=

9.6+4.78= 62.1-17.07= 5.67-0.845= 0.506-0.19= 11.04-7.3= 1.4-0.405= 1.4-0.405= 3.906+0.66= 75.6-3.55= 10.1-0.55= 5.94+10.7= 12.03+0.875= 37.8+3.02= 0.704-0.25= 3.整数与小数的加减法 10+10.1= 27+8.03=

学习必备欢迎下载 26+7.98= 13.99+1= 7.88+2 = 3.57+3= 28-3.56= 10-0.81= 10-0.36= 20-0.92= 8-7.089= 45.45-45= 95-9.85= 20-9.42= 35.09-11= 96.85-85= 10-0.41= 45-0.45= 4.小数加减 5.03-2.5= 22.8-5.23= 23.66+4.34= 3.52-4.66=

100以内加减法直接打印版

姓名:时间:得分: 53-31= 20+54= 36+31= 54+40= 96-36= 44+44= 41+32= 24+42= 79-51= 98-65= 95-24= 32+48= 60+29= 93-46= 46+52= 97-61= 80-23= 77-25= 92-48= 100-45= [ 姓名:时间:得分: 50-24= 53+34= 44-24= 75-31= 30+24= 82-31= 70-26= 66-34= 63-29= 29+58= 45+26= 35+60= 21+42= 38+32= 72-41= 32+67= 72-44= 39+40= 63+23= 93-49= ^ 姓名:时间:得分: 91-52= 92-26= 78-39= 37+21= 94-56= 80-54= 54+22= 45+51= 97-55= 28+26= 78-50= 99-76= 99-52= 29+24= 38+43= :

50= 姓名:时间:得分: 92-29= 41+55= 67-21= 78-31= 59-28= 58+24= 36+54= 76-54= 57-24= 24+61= 34+43= 99-41= 99-72= 42+37= 93-44= — 20+31= 81-58= 43+43= 46+46= 79-48= 姓名:时间:得分: 22+20= 38+59= 31+49= 65-33= 55+20= 66+34= 29+27= 83-43= 85-54= 22+60= … 59+29= 43+38= 60+37= 100-62= 31+43= 58+32= 94-28= 48+49= 63+22= 56+29= 姓名:时间:得分: 75+25= 78-30= 65-39= 29+60= 78-21= 28+53= 69-23= 92-37= 31+28= 33+45= |

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