计算下面各题:(1)540÷12×9+482(2)710÷15+38×23(3)(56-14+512)×24(4)20÷[1-(14+13)].-数学

题目简介

计算下面各题:(1)540÷12×9+482(2)710÷15+38×23(3)(56-14+512)×24(4)20÷[1-(14+13)].-数学

题目详情

计算下面各题:
(1)540÷12×9+482
(2)
7
10
÷
1
5
+
3
8
×
2
3

(3)(
5
6
-
1
4
+
5
12
)×24
(4)20÷[1-(
1
4
+
1
3
)].
题型:解答题难度:中档来源:不详

答案

(1)540÷12×9+482,
=45×9+482,
=405+482,
=887;

(2)class="stub"7
10
÷class="stub"1
5
+class="stub"3
8
×class="stub"2
3

=class="stub"7
10
×5+class="stub"1
4

=class="stub"7
2
+class="stub"1
4

=class="stub"15
4


(3)(class="stub"5
6
-class="stub"1
4
+class="stub"5
12
)×24,
=class="stub"5
6
×24-class="stub"1
4
×24+class="stub"5
12
×24,
=20-6+10,
=24;

(4)20÷[1-(class="stub"1
4
+class="stub"1
3
)],
=20÷[1-class="stub"7
12
],
=20÷class="stub"5
12

=20×class="stub"12
5

=48.

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