脱式计算.49×1516÷54(23+215)×45(1-110×7)÷1534×(12+18)÷5.-数学

题目简介

脱式计算.49×1516÷54(23+215)×45(1-110×7)÷1534×(12+18)÷5.-数学

题目详情

脱式计算.
4
9
×
15
16
÷
5
4
(
2
3
+
2
15
)×45
(1-
1
10
×7)÷
1
5
3
4
×(
1
2
+
1
8
)÷5
题型:解答题难度:中档来源:不详

答案


(1)class="stub"4
9
×class="stub"15
16
÷class="stub"5
4

=class="stub"5
12
÷class="stub"5
4

=class="stub"1
3


(2)(class="stub"2
3
+class="stub"2
15
)×45

=class="stub"2
3
×45+class="stub"2
15
×45,
=30+6,
=36;

(3)(1-class="stub"1
10
×7)÷class="stub"1
5

=(1-class="stub"7
10
)÷class="stub"1
5

=class="stub"3
10
÷class="stub"1
5

=class="stub"3
2


(4)class="stub"3
4
×(class="stub"1
2
+class="stub"1
8
)÷5

=class="stub"3
4
×class="stub"5
8
÷5,
=class="stub"15
32
÷5,
=class="stub"3
32

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