列竖式计算.(带☆的要验算,带*的要保留两位小数)①0.27×0.45=②☆3.05×2.4=③0.51÷0.12=④*6.24÷0.4=-数学

题目简介

列竖式计算.(带☆的要验算,带*的要保留两位小数)①0.27×0.45=②☆3.05×2.4=③0.51÷0.12=④*6.24÷0.4=-数学

题目详情

列竖式计算.(带☆的要验算,带*的要保留两位小数)
①0.27×0.45=②☆3.05×2.4=③0.51÷0.12=④*6.24÷0.4=
题型:解答题难度:中档来源:不详

答案

①0.27×0.45=0.1215;
0.27
×0.45

.
135

class="stub"108
0.1215


②3.05×2.4=7.32;
3.05
×2.4

.
1220

class="stub"610
7.320

验算:
2.4
×3.05

.
120

class="stub"72
7.320


③0.51÷0.12=4.25.
4.25
1251

class="stub"48
30

class="stub"24
60

class="stub"60
0


④6.24÷0.4=15.60.
15.6
462.4

class="stub"4
22

class="stub"20
24

class="stub"24
0

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