计算下列各题.(1)37×14÷34(2)(25+23)×4(3)(15-14×47)÷821(4)(38-25%)×8÷56×52.-数学

题目简介

计算下列各题.(1)37×14÷34(2)(25+23)×4(3)(15-14×47)÷821(4)(38-25%)×8÷56×52.-数学

题目详情

计算下列各题.
(1)
3
7
×
1
4
÷
3
4

(2)(25+
2
3
)×4
(3)(15-14×
4
7
)÷
8
21

(4)(
3
8
-25%)
×8÷
5
6
×
5
2
题型:解答题难度:中档来源:不详

答案

(1)class="stub"3
7
×class="stub"1
4
÷class="stub"3
4

=class="stub"3
7
×class="stub"1
4
×class="stub"4
3

=class="stub"1
7

(2)(25+class="stub"2
3
)×4,
=25×4+class="stub"2
3
×4,
=100+2class="stub"2
3

=102class="stub"2
3

(3)(15-14×class="stub"4
7
)÷class="stub"8
21

=(15-8)÷class="stub"8
21

=7÷class="stub"8
21

=7×class="stub"21
8

=18class="stub"3
8

(4)(class="stub"3
8
-25%
)×8÷class="stub"5
6
×class="stub"5
2

=(class="stub"3
8
×8-25%×8)÷class="stub"5
6
×class="stub"5
2

=(3-2)÷class="stub"5
6
×class="stub"5
2

=1×class="stub"6
5
×class="stub"5
2

=3.

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