脱式计算(57-58)÷556(16×38)×2423÷(1-49)-数学

题目简介

脱式计算(57-58)÷556(16×38)×2423÷(1-49)-数学

题目详情

脱式计算
5
7
-
5
8
)÷
5
56

1
6
×
3
8
)×24

2
3
÷(1-
4
9
题型:解答题难度:中档来源:不详

答案

(1)(class="stub"5
7
-class="stub"5
8
)÷class="stub"5
56

=(class="stub"5
7
-class="stub"5
8
)×class="stub"56
5

=class="stub"5
7
×class="stub"56
5
-class="stub"5
8
×class="stub"56
5

=8-7,
=1;

(2)(class="stub"1
6
×class="stub"3
8
)×24,
=class="stub"1
6
×class="stub"3
8
×24,
=class="stub"3
2


(3)class="stub"2
3
÷(1-class="stub"4
9
),
=class="stub"2
3
÷class="stub"5
9

=class="stub"2
3
×class="stub"9
5

=class="stub"6
5

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