五年级上册数学口算练习1000道.doc
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4.25 X 4= 0. 07 X 0.5= 33 X 0.04= 6.5 X 4=
2.3 X 0.06= 15 X 0.08= 0.09 X 0.9= 4.7
X 0.1 =
54X 0.8= 1.6 X 0.03= 0.8 X 0.9= 0.6
X 100=
17.5 X 0.01 = 3.2 X 0.5= 25 X 0.4= 12.5 x 0.8= 6X 6.5= 3.6 X 0.7= 6.5 X 0.4= 8.5 x 0.2= 0.66 x 0.3= 2.5 X 0.4= 7.7 X 0.8= 0.012 x 20= 4.6 x 0.4= 3 X 0.09= 2.2 X 0.05= 4.1 x 0.6= 0.75 X 0.4= 23 X 0.4= 0.32 X 100= 5.5 X 2= 4.73 X 10= 0 X 23.5= 0.25 X 4= 7.2 X 0.5=
3.3 x 0.5= 4-1.4=
5.68+0.42=
60 X 0.8= 3.4
82-7.2= 19+9.1 =
6.1-5.1= 0.72- 0.24=
X 0.6=
4.1-0.89=
0.8+0.18=
0.125 X 8=
0.89-0.25= 1-0.98= 0.048+0.52= 5 X 400= 19.9+11.1 = 187 +1000= 1+3.89= 0.081 X 10= 75+ 10= 0.96 + 8= 0.8 X 7= 1.5 X 7= 1.32 X 8= 0.7 X 8= 10.3 X 2= 5 X 0.6= 0.9 X 0.3= 3.5 X 0.2= 2.01 X 0= 10 X 0.05=
0.13 x 7= 4X 0.3=
0.21 X100= 0.7
430-250= 0.17+0.06=
X 4=
1.02-0.09=
0.05 X 4=
7200+800= 0.17+0.6= 0.83-0.6= 17 X 300=
0.98-0.09= 0.15+0.7= 0.2+0.78= 600
670+250= 10.2+0.2=
X 0.7=
9.2-6=
10.2+0.02=
8500+500= 3.2-0.32=
3.2-3.2= 3.7+2.3=
2+2.8= 380-290=
25
0.35+0.5=
x 100=
0.35+0.63= 3500 + 70= 3.1+3= 3.8+0.38=
3.7+0.33= 0.51+0.33= 1-0.6= 8-
4.6=
5.8-3.6= 0.52+0.4=
6.45+5.5= 4.5-1.3=
3.4-2.8= 9.53-1.53=
8.8-6.7= 10+0.08= 9.5-7.3= 7.2+0.8= 7.82+0.3= 8.8-6.7=
9.5-7.3= 1-0.95= 3.4-2.8=
0.96-0.35= 9.53-1.53= 0.25+0.75= 1.2-0.8= 0.83-0.5=
2.7+0= 12.5 X 8= 2.3
X 4= 3.25
X
0=
0.4 X 50= 30 X 0.1= 2.6 X 3= 4.1 X 2= 0.35 X 0.2= 7.5 X 0.1= 2.5 X 2= 0.5
X
10=
0.6 X 8=
2.8
X 10= 0.7 X 0.8= 5.6+0.4=
4.7+2.3= 4.5
X 2=
7.2
X 0.8=
6 X 3.4=
7500 + 250= 3.8+1 = 0.95-0.05=
450+780= 3.1+0.3= 3+0.3= 630
+ 9=
4.5-0.4= 9.5-5= 330 9=
9.53-1.53=
9.5-0.5=
3.5+2.4= 1-0.95= 0.3+0.27= 0.47+0.13=
4.5+4= 4-0.6=
0.95+0.05=
2.5+
3.2=
0.74+0.16= 23X100= 9.8-4.8= 480 40=
0.53 +100= 5.1+2.3= 125
80=
0.078 10=
0.52+0.4= 70
12= 0.25 100=
3.4-2.8=
0.6-0.37= 0.052 X 10= 10+0.08=
1-0.75=
0.5 X 1000= 0.82+0.3= 13.5+6.5=
3.05 X 100=
1.2-0.8= 21.6-1
2.6=
63
+100=
0.83-0.5= 0.76+0.14= 80+1000= 2.7+0.4=
0.72-0.43=
30X100= 0.92-0.2= 3.5+4.8=
3.5+2.4=
5+0.07= 1-0.61 =
0.47+0.23=
0.25+0.75=
0.62-0.32= 0.75 X 100= 0.02 X 0.5= 3.6 X 0.3= 5.6 X 100= 0.75 + 0.25= 0.125 X 8= 0.86 + 2= 0.56 + 28= 0.36 + 0.4= 0.7 9= 3.6 + 24=
0.8 X 1.1 = 46.7-3.8= 12.8 + 4= 5.2 +13=
1.64+4.1 = 10+ 20= 24 - 15= 0.35 X 0.6= 4.7+
2.3= 4.5 X 2= 6.9 2.5= 7.2 X 0.8= 6X
3.4= 0.62 —0.32= 1.4 0.5= 0.75 X 100= 0.02 X 0.5= 3.6 + 0.3= 6.3 7= 5.6 +100= 0.75 + 0.25= 0.125 X 8=
4.8 0.3= 0.96 + 2= 0.56 + 28= 0.36 + 0.4= 0.64 + 0.8= 0.72 + 3.6= 3.6 + 12= 0.8 X 1.1 = 7.2+12.8= 46.7 —
3.8= 12.8 + 4= 5.2 +13= 12.5 + 5= 1.64 + 41 = 10+ 20= 24 + 15= 8.65 X 10= 0.35 X 0.6= 3.08 X 0.01 =
4.95 X1000= 6.9 0.1= 0.4 X 0.5= 2.4 + 0.8= 10.8 + 9= 9.6 0.8= 0.108 + 2= 4.95 + 0.9= 9.65 + 0.1 = 0.325 X 100= 2.5 X 8= 0.56 + 0.7= 0.125 X 4= 3.28 X 0.1 = 3.9 + 0.13= 7.2 X 0.1 = 0.01 X 0.1 = 1.2 + 0.8= 0.07 + 0.7= 1+ 2.5= 1.25 x 0.8= 3.2 0.04=
5.1 +1.7= 1.4 + 0.5= 1.55 + 0.5= 3.15 + 0.7= 1.86 + 0.2= 1.04 + 0.8= 0.38 + 0.1 = 1.36 + 0.2= 1.16 + 0.4= 0.12 + 0.6= 0.27 + 0.9= 0.48 + 0.2= 8.73 + 0.9= 0.72 + 0.3= 0.46 + 0.1 = 0.22 + 0.2= 3.45 + 0.5= 4.62 + 0.6= 1.92 + 0.4= 0.9 0.3= 5.11 + 0.7= 0.35 + 0.1 = 3.92 + 0.8= 4.32 + 0.9= 0.24 + 0.8=