题目内容

【题目】脱式计算(能简算的要简算)。

0.75×0.25×4      9.6+9.6×99      6.3×10.1

4×0.8×12.5×2.5 4.53÷0.25÷4 5.2-1.2×2.5

【答案】0.75;960;63.63

100;4.53;2.2

【解析】

0.75×0.25×4

=0.75×(0.25×4)

=0.75

9.6+9.6×99

=(1+99)×9.6

=960

6.3×10.1

=6.3×(10+0.1)

=6.3×10+6.3×0.1

=63.63

4×0.8×12.5×2.5

=(4×2.5)×(0.8×12.5)

=10×10

=100

4.53÷0.25÷4

=4.53÷(0.25×4)

=4.53

5.2-1.2×2.5

=5.2-3

=2.2

练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网