7512-(345+2112).-六年级数学

题目简介

7512-(345+2112).-六年级数学

题目详情

7
5
12
-(3
4
5
+2
1
12
)
题型:解答题难度:中档来源:不详

答案

7class="stub"5
12
-(3class="stub"4
5
+2class="stub"1
12

=7class="stub"5
12
-(2class="stub"1
12
+3class="stub"4
5
),
=7class="stub"5
12
-2class="stub"1
12
-3class="stub"4
5

=5class="stub"1
3
-3class="stub"4
5

=class="stub"16
3
-class="stub"19
5

=class="stub"23
15

=1class="stub"8
15

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