计算.57×23×1415=29×320×9=712×34×221=67×215×58=-六年级数学

题目简介

计算.57×23×1415=29×320×9=712×34×221=67×215×58=-六年级数学

题目详情

计算.
5
7
×
2
3
×
14
15
=
2
9
×
3
20
×9
=
7
12
×
3
4
×
2
21
=
6
7
×
2
15
×
5
8
=
题型:解答题难度:中档来源:不详

答案

(1)class="stub"5
7
×class="stub"2
3
×class="stub"14
15

=class="stub"5
7
×class="stub"14
15
×class="stub"2
3

=class="stub"2
3
×class="stub"2
3

=class="stub"4
9


(2)class="stub"2
9
×class="stub"3
20
×9

=class="stub"2
9
×9×class="stub"3
20

=2×class="stub"3
20

=class="stub"3
10


(3)class="stub"7
12
×class="stub"3
4
×class="stub"2
21

=class="stub"7
12
×class="stub"2
21
×class="stub"3
4

=class="stub"1
18
×class="stub"3
4

=class="stub"1
24


(4)class="stub"6
7
×class="stub"2
15
×class="stub"5
8

=class="stub"6
7
×(class="stub"2
15
×class="stub"5
8

=class="stub"6
7
×class="stub"1
12

=class="stub"1
14

更多内容推荐