怎样算简便就怎样算(1)15×8÷45(2)1-79÷78(3)(56-23)×910(4)34÷56÷78.-数学

题目简介

怎样算简便就怎样算(1)15×8÷45(2)1-79÷78(3)(56-23)×910(4)34÷56÷78.-数学

题目详情

怎样算简便就怎样算
(1)
1
5
×8÷
4
5
(2)1-
7
9
÷
7
8
(3)(
5
6
-
2
3
)×
9
10
(4)
3
4
÷
5
6
÷
7
8
题型:解答题难度:中档来源:不详

答案

(1)class="stub"1
5
×8÷class="stub"4
5

=class="stub"8
5
÷class="stub"4
5

=2;

(2)1-class="stub"7
9
÷class="stub"7
8

=1-class="stub"8
9

=class="stub"1
9


(3)(class="stub"5
6
-class="stub"2
3
)×class="stub"9
10

=class="stub"1
6
×class="stub"9
10

=class="stub"3
20


(4)class="stub"3
4
÷class="stub"5
6
÷class="stub"7
8

=class="stub"9
10
×class="stub"8
7

=class="stub"36
35

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