脱式计算:(815-15)÷3[1-(12-14)]×23.-数学

题目简介

脱式计算:(815-15)÷3[1-(12-14)]×23.-数学

题目详情

脱式计算:
(
8
15
-
1
5
)÷ 3

[1-(
1
2
-
1
4
)]×
2
3
题型:解答题难度:中档来源:不详

答案

(1)(class="stub"8
15
-class="stub"1
5
)÷ 3

=class="stub"1
3
÷3,
=class="stub"1
9


(2)[1-(class="stub"1
2
-class="stub"1
4
)]×class="stub"2
3

=【1-class="stub"1
4
】×class="stub"2
3

=class="stub"3
4
×class="stub"2
3

=class="stub"1
2

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