720+720+720+720=______×______=______14+14+14+…+14100个=______×______=______.-数学

题目简介

720+720+720+720=______×______=______14+14+14+…+14100个=______×______=______.-数学

题目详情

7
20
+
7
20
+
7
20
+
7
20
=______×______=______
1
4
+
1
4
+
1
4
+…+
1
4
100个
=______×______=______.
题型:解答题难度:中档来源:不详

答案

class="stub"7
20
+class="stub"7
20
+class="stub"7
20
+class="stub"7
20
=class="stub"7
20
×4=class="stub"7
5


class="stub"1
4
+class="stub"1
4
+class="stub"1
4
+…+class="stub"1
4
100个
=class="stub"1
4
×100=25.
故答案为:class="stub"7
20
;4;class="stub"7
5
class="stub"1
4
;100;25.

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