难的小数乘法的简便运算

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问题描述:

难的小数乘法的简便运算希望能解答下

最佳答案

推荐答案

0.25×1.25×0.67×32

=0.25×1.25×0.67×4×8

=1×1×0.67

=0.67

=33.41×1/4-3.41×1/4

=(33.41-3.41)×1/4

=30×1/4

其他答案

0.25×1.25×0.67×32

=0.25×1.25×0.67×4×8

=(0.25×4)×(0.125×8)×0.67

=1×1×0.67

=0.67

33.41÷4-3.41×0.25

=33.41×1/4-3.41×1/4

=(33.41-3.41)×1/4

=30×1/4

=7.5

0.99×0.81+0.11×9×0.19

=0.99×0.81+0.99×0.19

=0.99×(0.81+0.19)

=0.99×1

=0.99

(5.23+5.23+5.23+5.23) ×25

=5.23×4×25

=5.23×100

=523

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