2025年通城学典计算能手五年级数学上册苏教版第47页答案
一、口算。
$3.6 - 0.36 = $
3.24
$4.6 + 6 = $
10.6
$6.8 + 8.6 = $
15.4

$8.3 - 3.03 = $
5.27
$9.06 - 6.6 = $
2.46
$3.26 - 0.2 = $
3.06

$0.87 + 0.3 = $
1.17
$0.4 + 1.8 = $
2.2
$0.8 - 0.08 = $
0.72

$2.04 - 0.8 = $
1.24
$5.6 - 2.3 = $
3.3
$8.02 + 2.16 = $
10.18

$3.2 - 0.25 = $
2.95
$1.5 - 0.43 = $
1.07
$9.8 + 0.98 = $
10.78

$1.48 + 0.22 = $
1.7
$5.43 - 1.4 = $
4.03
$5.5 + 5 = $
10.5

$3.76 + 1.23 = $
4.99
$7.8 + 0.22 = $
8.02
$8 - 1.34 = $
6.66

$0.2 + 3.28 = $
3.48
$4.3 + 1.7 = $
6
$3.5 + 2.5 = $
6

答案

3.24 10.6 15.4 5.27 2.46 3.06 1.17 2.2 0.72 1.24 3.3 10.18 2.95 1.07 10.78 1.7 4.03 10.5 4.99 8.02 6.66 3.48 6 6
二、计算下面各题。
$60.4 - 25.54 + 2.6$ $40.2 - 35.35 - 1.8$ $46.1 - 8.68 + 2.6$
$89.6 + 20.54 - 0.25$ $0.78 + 21.98 + 0.37$ $23.4 + 41.72 - 35.68$

答案

37.46 3.05 40.02 109.89 23.13 29.44

解析

$60.4 - 25.54 + 2.6 = 34.86 + 2.6 = 37.46$
$40.2 - 35.35 - 1.8 = 4.85 - 1.8 = 3.05$
$46.1 - 8.68 + 2.6 = 37.42 + 2.6 = 40.02$
$89.6 + 20.54 - 0.25 = 110.14 - 0.25 = 109.89$
$0.78 + 21.98 + 0.37 = 22.76 + 0.37 = 23.13$
$23.4 + 41.72 - 35.68 = 65.12 - 35.68 = 29.44$