29×34+0.75+79×75%.-数学

题目简介

29×34+0.75+79×75%.-数学

题目详情

2
9
×
3
4
+0.75+
7
9
×75%
题型:解答题难度:中档来源:不详

答案

class="stub"2
9
×class="stub"3
4
+0•75+class="stub"7
9
×75%
=class="stub"2
9
×class="stub"3
4
+class="stub"3
4
+class="stub"7
9
×class="stub"3
4

=(class="stub"2
9
+class="stub"7
9
)×class="stub"3
4
+class="stub"3
4

=1×class="stub"3
4
+class="stub"3
4

=class="stub"6
4
=1class="stub"1
2

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