问题 解答题
简便运算
25.3×
1
4
+74.7÷4
125×32×25
答案

25.3×

1
4
+74.7÷4,

=25.3×

1
4
+74.7×
1
4

=(25.3+74.7)×

1
4

=100×

1
4

=25;

(2)125×32×25,

=125×8×4×25,

=(125×8)×(4×25),

=100×1000,

=100000.

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