你有几种填法?()5+()5=45()9-()9=19.-三年级数学

题目简介

你有几种填法?()5+()5=45()9-()9=19.-三年级数学

题目详情

你有几种填法?
()
5
+
()
5
=
4
5

()
9
-
()
9
=
1
9
题型:解答题难度:中档来源:不详

答案

根据分析得:
class="stub"1
5
+class="stub"3
5
=class="stub"4
5

class="stub"2
5
+class="stub"2
5
=class="stub"4
5


class="stub"9
9
-class="stub"8
9
=class="stub"1
9

class="stub"8
9
-class="stub"7
9
=class="stub"1
9

class="stub"7
9
-class="stub"6
9
=class="stub"1
9

class="stub"6
9
-class="stub"5
9
=class="stub"1
9

class="stub"5
9
-class="stub"4
9
=class="stub"1
9

class="stub"4
9
-class="stub"3
9
=class="stub"1
9

class="stub"3
9
-class="stub"2
9
=class="stub"1
9

class="stub"2
9
-class="stub"1
9
=class="stub"1
9

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