50以内加减法练习题汇总
. . . . .
. . 优质资料 . . 50以口算练习一
日期 用时 分数
_____
47-10= 42-3= 30-24= 4-10=
29-13= 42-14= 13-4= 11-2=
24+18= 25+17= 32+9= 7+25=
18+26=
44-6= 32-15= 41-25=
33-28 35-26= 7+17= 9+29=
. . . . .
. . 优质资料 . . 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=
50以口算练习二
日期 用时 分数 _____
27-18= 48-29= 9+19= 7+25=
8+36= 5+39= 43-8=
17-10=
36-10= 46-20= 36-30= 46-40= . . . . .
. . 优质资料 . .
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=
50以口算练习三
日期 用时 分数 _____ . . . . .
. . 优质资料 . .
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=
12+16= 13+17= 31+18= 21+19=
25+20=
23-15= 39-26= 40-17=
49-18= 49-29=
20+12= 22+13=
. . . . .
. . 优质资料 . . 24+14= 25+15= 26+16=
25-5=
35-6= 45-27=
35-18=
25-9=
50以口算练习四
日期 用时 分数 _____
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= . . . . .
. . 优质资料 . .
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=
50以口算练习五
日期 用时
分数 _____
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= . . . . .
. . 优质资料 . .
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=
50以口算练习六
日期 用时 分数 _____
41-37= 26+10= 8+25=
19-8=
28+5= 29+15= 18+16= 17+14=
. . . . .
. . 优质资料 . . 28+2= 34+7= 23+19= 32-8=
25+18 =
16-9= 33+6= 43-27=
35-6= 42-15=
13+25= 33-16=
36+9= 19+15= 30-28=
50以内加减法练习100道
50以内加减法练习100道
50以内加减法练习100道
50-12=
46-13=
17+26=
49-15=
36-18=
18+23=
26-17=
46-19=
25+24=
21+19=
32-18=
21+25=
31-16=
26+19=
21-17=
23-14=
24+19=
34-15=
19+26=
45-12=
34-19= 33+16=
41-13=
22+18=
31-11=
13+29=
50-16=
47-19=
32+16=
23-12=
45-19=
17+26=
29-18=
46-14=
14+29=
37-15=
23+15=
43-16=
29-17=
12+27=
32+18=
32-24= 50以内加减法练习100道
24+16=
43-10=
33-11=
18+26=
42-18=
50-14=
41-19=
29+18=
16+25=
31-18=
25-11=
25+18=
36-21=
31-24=
19+14=
46-25=
37-28=
32-24=
17+18=
21-12=
43-26=
21+27= 36-24=
47-23=
45-15=
39-16=
32+16=
43-31=
46-25=
22+16=
36-27=
47-28=
50-32=
48-26=
33-25=
46-11=
16+28=
50-46=
26-17=
25+24=
34-18=
29-14=
27+19=
37-12= 50以内加减法练习100道
26-19=
33-18=
25-17=
15+34=
26-13=
42-28=
16+26= 17+24=
38-29=
45-26=
19+29=
24+26=
34-13=
25+19=
一年级50以内加减法练习题(精修打印版)
50以内加减混合练习题24+19=47-29= 40-29= 43-24= 19+19=27+14=50-42= 14+28= 27+19= 13+29=40-11=36-18= 44-17= 40-12= 30-13=34-18=42-23= 31-17= 45-36= 26+19=18+13=30-23= 26-18= 33-19= 42-18=30-18=38-29= 18+14= 18+19= 30-12=42-34=42-29= 35-17= 41-24= 34-18=26+19=42-18= 30-12= 30-13= 42-23=44-15=45-18= 41-14= 33-14= 20-11=44-26=44-37= 28+16= 41-19= 40-15=24-17=15+29= 42-13= 41-25= 27+17=47-38=29+15= 20-11= 40-15= 24-17=27+17=19+16= 46-38= 43-19= 43-14=50-32=42-27= 35-26= 34-16= 50-37=40-19=31-15= 32-14= 43-26= 26+17=27+16=50-43= 35-19= 43-14= 50-32=31-17=31-22= 19+12= 35-27= 31-18=20-11=19+17= 18+25= 31-12= 38-29=26-19=42-35= 31-23= 19+24= 14+19=15+18=18+19= 35-17= 22+19= 31-17=31-18=38-29= 14+19= 31-17= 31-22=50-37=43-19= 17+18= 26+16= 16+25=13+19=36-29= 21-13= 13+18= 50-21=50-26=43-14= 25-18= 50-31= 47-19=50-14=25-17= 16+25= 50-21= 50-26=47-19=44-26= 24-17= 42-13= 41-14=40-21=15+29= 46-19= 15+19= 27+17=29+15=41-26= 47-38= 41-19= 33-14=40-15=28+16= 41-14= 27+17= 29+15=33-14=27-19= 22-14= 44-16= 30-19=18+26=17+27= 31-13= 34-25= 18+25= 50以内加减混合练习题18+15=30-19= 50-11= 42-17= 50-16=20-11=41-16= 19+25= 27-19= 20-13=28+18=18+26= 41-14= 29+16= 15+19=45-26=24-17= 44-16= 47-28= 40-11=20-11=20-13= 15+19= 40-11= 20-11=12+29=30-14= 42-24= 38-19= 26+19=34-19=42-19= 30-19= 25+16= 41-26=29+15=18+14= 34-18= 42-13= 46-19=45-36=42-18= 31-12= 26+19= 34-19=41-26=46-19= 43-36= 36-19= 32-25=16+15=35-26= 40-24= 32-14= 32-19=28+15=24+19= 40-31= 40-19= 44-25=33-18=32-24= 50-38= 19+16= 43-36=32-25=32-19= 44-25= 47-18= 50-37=44-18=36-18= 23-14= 40-18= 40-12=43-24=13+28= 28+13= 40-17= 43-19=28+19=18+28= 27+14= 45-16= 40-23=16+15=26-17= 13+19= 50-21= 37-29=32-25=50-27= 50-16= 17+25= 30-23=33-24=30-12= 43-15= 33-19= 17+19=21-13=16+26= 17+14= 16+15= 26-17=37-29=30-23= 17+19= 14+27= 29+16=18+27=20-13= 45-27= 24-17= 40-11=27-19=19+25= 41-14= 44-16= 41-16=29+16=40-11= 41-16= 50-28= 26+17=50-39=43-16= 27+16= 42-28= 50-33=50-34=40-14= 26-19= 46-28= 17+26=42-23=22-13= 26+17= 50-33= 50-34=17+26=45-18= 50-12= 36-27= 21-14=16+27=32-15= 16+16= 15+29= 42-17=50-22=50-11= 19+28= 50-17= 46-17= 50以内加减混合练习题21-14=42-17= 46-17= 18+28= 43-19=15+16=28+19= 40-23= 27+14= 47-18=17+18=17+28= 41-22= 34-27= 41-28=13+18=26+17= 41-34= 31-15= 33-17=30-16=42-27= 34-16= 37-28= 37-29=30-21=45-28= 18+17= 18+16= 17+18=41-28=33-17= 37-29= 17+18= 17+28=43-34=50-13= 16+17= 15+29= 40-33=19+29=50-12= 42-13= 31-23= 50-18=19+24=46-19= 16+18= 20-11= 36-28=24-17=25-16= 12+29= 32-17= 43-34=40-33=50-18= 36-28= 30-17= 40-19=30-23=23-15= 14+29= 18+29= 14+18=40-13=31-22= 44-25= 26-17= 28+15=48-19=18+23= 43-15= 44-18= 40-14=50-37=40-19= 14+18= 28+15= 48-19=40-14=13+19= 25-18= 16+26= 33-18=30-18=22-13= 44-35= 50-16= 34-17=23-16=40-12= 15+16= 18+28= 14+28=14+29=18+17= 44-18= 18+23= 23-15=14+18=48-19= 28+13= 44-25= 28+14=34-27=28+19= 23-16= 14+28= 14+29=23-15=28+14= 17+19= 33-18= 25-18=41-28=30-18= 30-23= 34-17= 26-17=30-11=37-29= 18+18= 44-35= 30-16=50-16=37-18= 25+19= 33-25= 50-21=17+24=41-23= 13+19= 25-18= 41-28=26-17=30-16= 50-21= 32-18= 50-13=31-24=15+19= 25-17= 27-19= 18+26=42-14=19+13= 12+19= 32-23= 29+16=50-19=20-12= 19+25= 16+18= 36-29= 50以内加减混合练习题23+19=50-13= 18+26= 29+16= 50-19=36-29=50-27= 17+26= 50-38= 22-13=40-14=43-16= 44-19= 18+25= 23-16=29+15=19+24= 24-17= 16+28= 15+18=42-13=19+29= 44-15= 41-19= 20-11=41-14=45-19= 15+29= 50-18= 29+15=15+18=20-11= 29+15= 50-14= 25+18=40-24=28+18= 40-29= 48-29= 48-39=33-16=43-36= 24+19= 36-18= 16+19=44-28=41-28= 40-23= 44-35= 40-18=36-28=28+13= 32-13= 32-18= 50-14=25+18=48-39= 16+19= 40-18= 36-28=41-32=30-14= 38-19= 41-26= 42-19=34-19=42-24= 45-26= 18+14= 42-13=45-36=40-27= 25+16= 42-19= 34-19=17+19=25-18= 17+18= 13+18= 16+25=21-12=50-15= 30-22= 50-25= 43-14=50-27=17+24= 37-29= 50-32= 32-24=33-18=50-22= 16+25= 43-14= 50-27=25+17=41-15= 29+16= 28+17= 33-15=40-28=45-26= 42-25= 26+15= 40-33=41-27=17+17= 45-37= 44-27= 41-22=30-15=41-32= 48-39= 25+17= 41-15=33-15=40-33= 41-22= 27+17= 33-14=36-19=35-16= 19+17= 43-27= 50-11=35-27=19+28= 19+22= 23+18= 24-15=31-16=40-15= 42-33= 46-39= 50-38=18+23=32-15= 47-38= 15+16= 40-31=33-14=50-11= 24-15= 50-38= 18+23=40-31=42-28= 26+18= 42-35= 25+19=35-17=42-17= 50-28= 50-23= 19+12= 50以内加减混合练习题43-16=42-23= 50-33= 46-29= 22+19=46-28=46-18= 25+19= 19+12= 43-16=22+19=28+19= 33-17= 50-14= 40-29=25-17=24+19= 48-29= 41-28= 48-39=25-17=12+19= 50-15= 13+18= 40-24=43-36=24+19= 32-24= 19+26= 21-12=44-29=36-18= 36-29= 40-29= 32-19=16+19=37-28= 16+25= 50-26= 33-17=25-17=40-24= 21-12= 32-19= 16+19=33-17=19+15= 43-19= 40-18= 43-25=40-13=46-38= 28+14= 32-13= 36-19=50-37=50-43= 31-15= 32-18= 50-42=28-19=27+15= 50-32= 43-25= 40-13=36-19=50-42= 17+15= 34-19= 26-19=30-13=33-26= 18+14= 33-25= 22+19=17+26=41-32= 31-12= 30-14= 17+16=45-36=45-37= 22-13= 30-18= 41-25=26-19=22+19= 17+16= 41-25= 17+15=32-14=18+28= 16+26= 45-17= 15+27=16+15=19+22= 33-19= 50-16= 47-38=50-29=27+19= 47-28= 40-22= 43-18=35-18=40-11= 23+18= 27+18= 43-34=50-35=19+12= 40-16= 43-29= 44-16=42-24=43-28= 50-29= 43-18= 35-18=43-34=44-16= 41-34= 41-29= 45-29=34-16=37-18= 30-17= 45-28= 26+17=41-17=29+18= 17+19= 41-24= 30-12=37-29=29+13= 29+19= 42-27= 25+19=44-36=34-17= 45-29= 26+17= 41-17=30-12=25+19= 44-25= 41-12= 18+29=45-18=40-25= 14+29= 41-18= 23-16=
一年级 50以内加减法口算练习题(500道)(A4直接打印_每页50题)
50以内加减法口算练习题(一)
姓名: 时间: 50题答对 题
21+18= 21+27= 21+19= 21-11= 19-19=
19+20= 19+28= 17+26= 17+30= 17+33=
16+40= 16+39= 16-14= 15+34= 15+29=
11+38= 49-40= 49-9= 49+1= 48-41=
48-19= 48-17= 48-23= 47+2= 47+0=
47-13= 47-9= 46+3= 46-18= 46-11=
46+0= 45+4= 45-3= 45+1= 45-22=
44+6= 44+1= 44-16= 44-24= 44-30=
44-37= 44-25= 44+3= 43-29= 43+4=
42-17= 42+8= 42-0= 42-41= 42-37= 50以内加减法口算练习题(二)
姓名: 时间: 50题答对 题
6 +27 = 35 -15 = 10 + 7 = 38 - 30 = 44 -23 =
50以内加减法练习题100题
50以内加减法练习题100题
精品文档
50以内加减法练习题100题
姓名: ------------------ 时间:------------- 0题答对---------
题
25+19= 8+20=39-18=0-17=5+24=
48-19= 19+22=37+11=9-14=4-20=
22+11=+12=20+19= 1+7=8+6=
49-9=48-11=32+10= +40= +24=
50以内加减法口算练习题+25=427-19=3-26= 4-1=5-6=-=292-9=+8=1-9=44+28=15+=346-14=42-18=5-17=
15+25=28+6=+25= 17+1=34-18=-19=,14=22,19= 19,
16=46,19=19,18=43,19= 19,13=31,19=7,9=
0-1=4-10 =44-24=5-18=45-17=49-18=27,18=6,18= 18,
18=21,8=25,18= 3,18= 19,18=42,
18=46-27=38-21=4+=-1= 8+18= 16+2=+30=35+6=37-29=
17,17= 5,27= 7,16=3,17= 17,14= 0,27= 17,18=6
,37=,17=47-28=2+= 1-16=5+18=-18=4+12=6,15= 4,
26=6,18= ,36=,9=,16= ,17=,26=1-==20 14+=4+18=3-12=2-8=3 +15=3)-18=246-18=5,17=31,25= 5,8=32,15=15,19=34,15= 4,19=45,25=
27-18=37-6-29=6-18=34-19=+25=4244-1=5-6=-=21-9=44+2
1 / 2
精品文档
8=15+=36-27=23,17=1-=538-21=47-28=
50以内加减法混合运算-可直接打印版小学数学
50以内加减法混合运算练习题【每页100题】
姓名:_________时间:__________做对了_________题
5-1-2= 41+40+3= 14+19-2= 16+8-2=
10+23+3= 3-1+1= 46+21+27= 28+21-20=
9-8+13= 28+43-17= 39-5+18= 43-13-30=
11+39+9= 1+5-2= 49+3+46= 38-13-22=
42-14+45= 46+14-2= 3+39+6= 39+48-33=
31+13-3= 6+38-31= 41-16-18= 13-11+1=
20+34-27= 4-3+19= 46-15-27= 5-4-1=
38+34+1= 46-13+12= 17-9+45= 36-22+9=
45+24+8= 43+29+16= 48+4-1= 19+46+4=
43-6+32= 6-3-1= 6-5-1= 31+23+11=
16-12+34= 17+19+17= 46-29-14= 3-2-1=
17-16+38= 46+13+35= 30-5+27= 39+46+4=
14-5+15= 16-8+47= 11-6+36= 2-1+41=
32-30-1= 8+27-7= 13-6-1= 3+27+18=
18-2-1= 6-3-3= 30-18+40= 42-10+31=
8+5+3= 35-24+50= 15+36+9= 2-1-1=
9-5-3= 45+44-17= 31+36+3= 21+12-8=
28-5-13= 20-8+19= 37+26-19= 33+25+20=
17+48+1= 19+34-7= 30-28+22= 5-3+10=
22+49-14= 11+28-17= 10+15-3= 4+12+22=
40-11-25= 43+12-1= 13+37-27= 50+10-6=
50以内加减法练习题
50以内加减法练习一
47-10= 42-3= 30-24= 36-18 17-9=
29-13= 42-14= 23-14= 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=
20以内加减法练习(5分钟100题)
3 +12 = 0 + 0 = 0 +17 = 7 - 2 =
2 +14 = 11-10 = 11+ 4 = 10+ 4 =
14- 3 = 11- 1 = 3 - 1 = 13- 2 =
12- 0 = 11+ 0 = 13-10 = 15+ 4 =
3 + 5 = 10+ 7 = 0 + 1 = 19-14 =
11+ 1 = 17- 1 = 16+ 2 = 16- 4 =
3 + 4 = 1 +14 = 14+ 2 = 4 +12 =
12+ 5 = 14+ 1 = 10+ 8 = 17-15 =
15- 3 = 9 - 8 = 11+ 5 = 16+ 1 =
12+ 3 = 17-12 = 1 +17 = 11+ 5 =
2 + 6 = 19- 5 = 7 - 3 = 12+ 4 =
10+ 7 = 1 +12 = 11+ 1 = 17-10 =
9 - 9 = 4 +12 = 11+ 2 = 13+ 2 =
16- 1 = 19-13 = 4 - 3 = 1 +14 =
15- 3 = 6 - 5 = 13+ 1 = 11+ 1 =
19- 1 = 2 + 6 = 19-18 = 2 +11 =
2 + 6 = 18-13 = 12+ 7 = 3 + 1 =
3 + 4 = 16-14 = 18- 2 = 5 + 4 =
2 - 2 = 7 - 3 = 6 - 0 = 7 +11 =
13- 3 = 8 - 6 = 0 +18 = 10+ 3 =
18-11 = 17+ 0 = 2 - 2 = 1 + 7 =
6 - 3 = 13+ 1 = 5 +14 = 11+ 0 =
7 - 1 = 0 +10 = 6 - 1 = 2 + 6 =
11-10 = 11+ 3 = 5 +10 = 12-10 =
0 +11 = 5 +10 = 5 - 5 = 19-11 =20以内加减法练习(5分钟一百题)
120以内加减法练习(5分钟一百题)
17-13 = 2 + 2 = 3 +11 = 10+ 3 =
一年级50以内口算加减法练习题1750题(共18页)
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=4
1-6= 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-( )
(最新版)50以内加减法混合运算(共1000题,可A4纸直接打印)17
50以内加减法混合运算(一)
姓名: 时间: 做对了 题(共100题)
28+5+13 = 11+2+34 = 50-29-4 = 38-14+22 =
33-30+44 = 13+10+22 = 37-6-4 = 13+4+4 =
21+9-24 = 44-24+8 = 33-17-6 = 37-9-19 =
42-19-1 = 38-7-11 = 46-2-2 = 42+7+0 =
8+13+20 = 49-30-19 = 24+11-11 = 20-8+32 =
19+5+3 = 8+39-27 = 18-16+29 = 13+21-27 =
35-8-23 = 37-16+12 = 43-10-17 = 32-22+20 =
30-25+25 = 23+7+17 = 32-28+19 = 30+7-17 =
41-30+1 = 1+8+22 = 45-42+44 = 14+27-34 =
9-7+31 = 11+3+22 = 6+28+2 = 28+18-46 =
44-32+18 = 11+28-4 = 15-3-11 = 2+5-5 =
27-3-8 = 0+1+41 = 40-38+0 = 18+19-11 =
43+1-42 = 50-4-2 = 18-1-7 = 0+3+28 =
18+8+8 = 7+35-35 = 2+5+5 = 45-22-13 =
28-11-6 = 22+15-30 = 21+13-1 = 45-13-25 =
14+2+10 = 26+3+17 = 34-12+11 = 37-22+26 =
24-3+16 = 42-10-5 = 1+31+14 = 13+7+18 =
34-33+47 = 38-8-15 = 31+5+4 = 1+45-37 =
42-7-12 = 49-2-45 = 12+37-45 = 5+9+1 =
50以内加减法练习题-格式优化_大全
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
