能简算的要简算.57×38+27×38(45-23)×1567÷5+17×15.-六年级数学

题目简介

能简算的要简算.57×38+27×38(45-23)×1567÷5+17×15.-六年级数学

题目详情

能简算的要简算.
5
7
×
3
8
+
2
7
×
3
8
4
5
-
2
3
)×15
6
7
÷5+
1
7
×
1
5
题型:解答题难度:中档来源:不详

答案

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

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

=1×class="stub"3
8

=class="stub"3
8


(2)(class="stub"4
5
-class="stub"2
3
)×15
=class="stub"4
5
×15-class="stub"2
3
×15
=12-10
=2;

(3)class="stub"6
7
÷5+class="stub"1
7
×class="stub"1
5

=class="stub"6
7
×class="stub"1
5
+class="stub"1
7
×class="stub"1
5

=(class="stub"6
7
+class="stub"1
7
)×class="stub"1
5

=1×class="stub"1
5

=class="stub"1
5

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