45=16()=()÷75=12+()=()-15.-五年级数学

题目简介

45=16()=()÷75=12+()=()-15.-五年级数学

题目详情

4
5
=
16
()
=(  )÷75=
1
2
+(  )=(  )-
1
5
题型:填空题难度:中档来源:不详

答案

由于16÷4=4,所以class="stub"4
5
=class="stub"4×4
5×4
=class="stub"16
20
,75÷5=15,所以class="stub"4
5
=class="stub"4×15
5×15
=class="stub"60
75
=60÷75;
因为class="stub"4
5
-class="stub"1
2
=class="stub"3
10
,所以class="stub"4
5
=class="stub"1
2
+class="stub"3
10
class="stub"4
5
+class="stub"1
5
=1,所以class="stub"4
5
=1-class="stub"1
5

综上,class="stub"4
5
=class="stub"16
20
=60÷75=class="stub"1
2
+class="stub"3
10
=1-class="stub"1
5

故填;20,60,class="stub"3
10
,1.

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