415+______=______÷89=1.5×______=1=314-______.-数学

题目简介

415+______=______÷89=1.5×______=1=314-______.-数学

题目详情

4
15
+______=______÷
8
9
=1.5×______=1=3
1
4
-______.
题型:填空题难度:中档来源:不详

答案

class="stub"4
15
+(  )=1;
1-class="stub"4
15
=class="stub"11
15

所以class="stub"4
15
+class="stub"11
15
=1;

②(  )÷class="stub"8
9
=1;
class="stub"8
9
×1=class="stub"8
9

所以class="stub"8
9
÷class="stub"8
9
=1;

③1.5×(  )=1;
1÷1.5=class="stub"2
3

所以1.5×class="stub"2
3
=1;

3class="stub"1
4
-(  )=1;
3class="stub"1
4
-1=2class="stub"1
4

所以3class="stub"1
4
-2class="stub"1
4
=1;
即:class="stub"4
15
+class="stub"11
15
=class="stub"8
9
÷class="stub"8
9
=1.5×class="stub"2
3
=1=3class="stub"1
4
-2class="stub"1
4

故答案为:class="stub"11
15
class="stub"8
9
class="stub"2
3
,2class="stub"1
4

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