计算下列各题,能简算的要简算.34×45+45×12118×215×41110-45÷2354÷[1÷(15-110)].-数学

题目简介

计算下列各题,能简算的要简算.34×45+45×12118×215×41110-45÷2354÷[1÷(15-110)].-数学

题目详情

计算下列各题,能简算的要简算.
3
4
×
4
5
+
4
5
×
1
2
11
8
×
2
15
×
4
11
10-
4
5
÷
2
3
5
4
÷[1÷(
1
5
-
1
10
)]
题型:解答题难度:中档来源:不详

答案

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

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

=class="stub"5
4
×class="stub"4
5

=1;

(2)class="stub"11
8
×class="stub"2
15
×class="stub"4
11

=class="stub"11
8
×class="stub"4
11
×class="stub"2
15

=class="stub"1
2
×class="stub"2
15

=class="stub"1
15


(3)10-class="stub"4
5
÷class="stub"2
3

=10-class="stub"6
5

=8class="stub"4
5


(4)class="stub"5
4
÷[1÷(class="stub"1
5
-class="stub"1
10
)]

=class="stub"5
4
÷[1÷class="stub"1
10
],
=class="stub"5
4
÷10,
=class="stub"1
8

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