5123÷53+7134÷74+9145÷95.-数学

题目简介

5123÷53+7134÷74+9145÷95.-数学

题目详情

51
2
3
÷
5
3
+71
3
4
÷
7
4
+91
4
5
÷
9
5
题型:解答题难度:中档来源:不详

答案

51class="stub"2
3
÷class="stub"5
3
+71class="stub"3
4
÷class="stub"7
4
+91class="stub"4
5
÷class="stub"9
5

=(50+class="stub"5
3
)×class="stub"3
5
+(70+class="stub"7
4
)×class="stub"4
7
+(90+class="stub"9
5
)×class="stub"5
9

=50×class="stub"3
5
+class="stub"5
3
×class="stub"3
5
+70×class="stub"4
7
+class="stub"7
4
×class="stub"4
7
+90×class="stub"5
9
+class="stub"9
5
×class="stub"5
9

=30+1+40+1+50+1
=123.

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