直接写得数.58×25=421×78=0.9×34=39×113=815×910=80×34×13=-数学

题目简介

直接写得数.58×25=421×78=0.9×34=39×113=815×910=80×34×13=-数学

题目详情

直接写得数.
5
8
×
2
5
=
4
21
×
7
8
=
0.9×
3
4
=
39×
1
13
=
8
15
×
9
10
=
80×
3
4
×
1
3
=
题型:解答题难度:中档来源:不详

答案

class="stub"5
8
×class="stub"2
5
=class="stub"1
4
class="stub"4
21
×class="stub"7
8
=class="stub"1
6
;0.9×class="stub"3
4
=class="stub"27
40

39×class="stub"1
13
=3;class="stub"8
15
×class="stub"9
10
=class="stub"12
25
; 80×class="stub"3
4
×class="stub"1
3
=20.

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