计算,能简算的要简算.38×4÷38×4(36+14)×14415÷5÷451-213÷813-34.-数学

题目简介

计算,能简算的要简算.38×4÷38×4(36+14)×14415÷5÷451-213÷813-34.-数学

题目详情

计算,能简算的要简算.
3
8
×4÷
3
8
×4
(36+
1
4
)×
1
4
4
15
÷5÷
4
5
1-
2
13
÷
8
13
-
3
4
题型:解答题难度:中档来源:不详

答案

(1)class="stub"3
8
×4÷class="stub"3
8
×4,
=class="stub"3
8
×4×class="stub"8
3
×4,
=(class="stub"3
8
×class="stub"8
3
)×(4×4),
=1×16,
=16;

(2)(36+class="stub"1
4
)×class="stub"1
4

=36×class="stub"1
4
+class="stub"1
4
×class="stub"1
4

=9+class="stub"1
16

=9class="stub"1
16


(3)class="stub"4
15
÷5÷class="stub"4
5

=class="stub"4
15
×class="stub"1
5
×class="stub"5
4

=class="stub"4
15
×(class="stub"1
5
×class="stub"5
4
),
=class="stub"4
15
×class="stub"1
4

=class="stub"1
15


(4)1-class="stub"2
13
÷class="stub"8
13
-class="stub"3
4

=1-class="stub"1
4
-class="stub"3
4

=1-(class="stub"1
4
+class="stub"3
4
),
=1-1,
=0.

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