2025年通城学典计算能手五年级数学上册苏教版第80页答案
一、口算。
$1.48÷0.2= $
7.4

$0.55+0.25= $
0.8

$2.6×0.3= $
0.78

$2.4×0.4= $
0.96

$2.3×0.5= $
1.15

$0.84÷0.042= $
20

$3.8-2.05= $
1.75

$2.4÷0.08= $
30

$7.2+0.08= $
7.28

$6.2×0.2= $
1.24

$2.8×0.2= $
0.56

$0.6÷1.5= $
0.4

$9.6÷0.12= $
80

$9.24-8.75= $
0.49

$1.27×0.3= $
0.381

$4.05+0.32= $
4.37

$3.2×0.9= $
2.88

$77.7÷0.7= $
111

$2.75+6.8= $
9.55

$7.2÷0.6= $
12

$4.24÷0.8= $
5.3

$0.25×8= $
2

$2.87-0.81= $
2.06

$4.2×0.8= $
3.36

答案

1.7.4 2.0.8 3.0.78 4.0.96 5.1.15 6.20 7.1.75 8.30 9.7.28 10.1.24 11.0.56 12.0.4 13.80 14.0.49 15.0.381 16.4.37 17.2.88 18.111 19.9.55 20.12 21.5.3 22.2 23.2.06 24.3.36

解析

1.48÷0.2=7.4
0.55+0.25=0.8
2.6×0.3=0.78
2.4×0.4=0.96
2.3×0.5=1.15
0.84÷0.042=20
3.8-2.05=1.75
2.4÷0.08=30
7.2+0.08=7.28
6.2×0.2=1.24
2.8×0.2=0.56
0.6÷1.5=0.4
9.6÷0.12=80
9.24-8.75=0.49
1.27×0.3=0.381
4.05+0.32=4.37
3.2×0.9=2.88
77.7÷0.7=111
2.75+6.8=9.55
7.2÷0.6=12
4.24÷0.8=5.3
0.25×8=2
2.87-0.81=2.06
4.2×0.8=3.36
二、用竖式计算。
$2.9×7.6$
$13÷0.325$
$12×0.067$
(得数保留两位小数)
$37.41÷0.43$
$0.49×0.17$
$10.71÷1.8$
(得数保留一位小数)

答案

1.22.04 2.40 3.0.80 4.87 5.0.0833 6.6.0