能简算的用简算.25%×1123×412.9×60%+87.1×35101×225-225.1.4-(1.5-80%×58)-数学

题目简介

能简算的用简算.25%×1123×412.9×60%+87.1×35101×225-225.1.4-(1.5-80%×58)-数学

题目详情

能简算的用简算.
25%×
11
23
×4
12.9×60%+87.1×
3
5
101×
2
25
-
2
25
1.4-(1.5-80%×
5
8
题型:解答题难度:中档来源:不详

答案

(1)25%×class="stub"11
23
×4,
=(0.25×4)×class="stub"11
23

=1×class="stub"11
23

=class="stub"11
23


(2)12.9×60%+87.1×class="stub"3
5

=12.9×class="stub"3
5
+87.1×class="stub"3
5

=(12.9+87.1)×class="stub"3
5

=100×class="stub"3
5

=60;

(3)101×class="stub"2
25
-class="stub"2
25

=(101-1)×class="stub"2
25

=100×class="stub"2
25

=8;

(4)1.4-(1.5-80%×class="stub"5
8
),
=1.4-(1.5-class="stub"4
5
×class="stub"5
8
),
=1.4-1,
=0.4.

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