2025年通城学典计算能手五年级数学上册苏教版江苏专版第50页答案
一、口算。
$0.27 - 0.2 = $
0.07

$0.46 + 0.34 = $
0.8

$0.6 + 0.06 = $
0.66

$7.38 - 5.88 = $
1.5

$3.4 + 4.56 = $
7.96

$7 - 0.82 = $
6.18

$10 - 2.05 = $
7.95

$7.1 - 7 = $
0.1

$9.7 - 0.97 = $
8.73

$8.8 + 0.12 = $
8.92

$3.7 + 0.03 = $
3.73

$0.12 + 0.8 = $
0.92

$5.08 - 4.2 = $
0.88

$0.22 + 0.8 = $
1.02

$10.9 - 7.1 = $
3.8

$4.2 + 9.1 = $
13.3

$0.37 + 0.3 = $
0.67

$2.19 + 9.1 = $
11.29

$1 - 0.716 = $
0.284

$5.3 - 4.6 = $
0.7

$1.87 + 5.3 = $
7.17

$7.4 + 6 = $
13.4

$40 - 5.9 = $
34.1

$6.75 + 0.25 = $
7

答案

一、0.07 0.8 0.66 1.5 7.96 6.18 7.95 0.1 8.73 8.92 3.73 0.92 0.88 1.02 3.8 13.3 0.67 11.29 0.284 0.7 7.17 13.4 34.1 7
二、计算下面各题。
$2.63 + 0.78 + 3.68$
$6.32 + 5.9 - 2.05$
$4.55 + 1.27 + 18.6$
$4.77 - 3.89 + 11.2$
$20.19 + 3.43 + 9.72$
$7.04 - 5.1 + 6.45$

答案

二、7.09 10.17 24.42

解析

2.63 + 0.78 + 3.68
= 3.41 + 3.68
= 7.09
6.32 + 5.9 - 2.05
= 12.22 - 2.05
= 10.17
4.55 + 1.27 + 18.6
= 5.82 + 18.6
= 24.42
4.77 - 3.89 + 11.2
= 0.88 + 11.2
= 12.08
20.19 + 3.43 + 9.72
= 23.62 + 9.72
= 33.34
7.04 - 5.1 + 6.45
= 1.94 + 6.45
= 8.39