《2025年黄冈小状元同步计算天天练五年级数学下册人教版广东专版》

1. 列竖式计算下列各题。
0.39×2.9=
0.39×2.9​​
5.8×2.15=
2.15×5.8​​
0.072×0.15=
0.072×0.15​​
5.58÷3.1=
3.1$\sqrt{5.58}$
51.3÷0.27=
0.27$\sqrt{51.3}$
26÷0.13=
0.13$\sqrt{26}$

答案：
0.39×2.9=1.131

5.8×2.15=12.47

0.072×0.15=0.0108

5.58÷3.1=1.8

51.3÷0.27=190

26÷0.13=200

2. 计算下面各题，能简算的要简算。
$7.2÷1.6 + 0.8$
$=$
$=$
$(16.8 + 1.47)÷0.7$
$=$
$=$
$9.07 - 22.78÷3.4$
$=$
$=$
$3.14×102$
$=$
$=$
$0.125×7.41×80$
$=$
$=$
$2.75÷0.25÷4$
$=$
$=$

答案： 7.2÷1.6+0.8
=4.5+0.8
=5.3
(16.8+1.47)÷0.7
=18.27÷0.7
=26.1
9.07−22.78÷3.4
=9.07−6.7
=2.37
3.14×102
=3.14×100+3.14×2
=314+6.28
=320.28
0.125×7.41×80
=0.125×80×7.41
=10×7.41
=74.1
2.75÷0.25÷4
=2.75÷(0.25×4)
=2.75÷1
=2.75