14+14+14+14=______×______;29+39+49=______×______=______.-数学

题目简介

14+14+14+14=______×______;29+39+49=______×______=______.-数学

题目详情

1
4
+
1
4
+
1
4
+
1
4
=______×______;
2
9
+
3
9
+
4
9
=______×______=______.
题型:填空题难度:偏易来源:不详

答案

class="stub"1
4
+class="stub"1
4
+class="stub"1
4
+class="stub"1
4
=class="stub"1
4
×4;
因为class="stub"2
9
+class="stub"3
9
+class="stub"4
9
=class="stub"9
9
,所以class="stub"2
9
+class="stub"3
9
+class="stub"4
9
=class="stub"1
9
×9=1.
故答案为:class="stub"1
4
,4,class="stub"1
9
,1.

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