能简算的要简算34×57×891-12×27÷3449÷35+59÷35.-六年级数学

题目简介

能简算的要简算34×57×891-12×27÷3449÷35+59÷35.-六年级数学

题目详情

能简算的要简算
3
4
×
5
7
×
8
9

1-
1
2
×
2
7
÷
3
4

4
9
÷
3
5
+
5
9
÷
3
5
题型:解答题难度:中档来源:不详

答案

(1)class="stub"3
4
×class="stub"5
7
×class="stub"8
9

=class="stub"3
4
×class="stub"8
9
×class="stub"5
7

=class="stub"2
3
×class="stub"5
7

=class="stub"10
21


(2)1-class="stub"1
2
×class="stub"2
7
÷class="stub"3
4

=1-class="stub"1
7
÷class="stub"3
4

=1-class="stub"4
21

=class="stub"17
21


(3)class="stub"4
9
÷class="stub"3
5
+class="stub"5
9
÷class="stub"3
5

=class="stub"4
9
×class="stub"5
3
+class="stub"5
9
×class="stub"5
3

=(class="stub"4
9
+class="stub"5
9
)×class="stub"5
3

=1×class="stub"5
3

=class="stub"5
3

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