计算下面各题.79-39=78-68=56-46=1112-612=1420-320=1115-415=1-38=1-17=1-45=-数学

题目简介

计算下面各题.79-39=78-68=56-46=1112-612=1420-320=1115-415=1-38=1-17=1-45=-数学

题目详情

计算下面各题.
7
9
-
3
9
=
7
8
-
6
8
=
5
6
-
4
6
=
11
12
-
6
12
=
14
20
-
3
20
=
11
15
-
4
15
=
1-
3
8
=
1-
1
7
=
1-
4
5
=
题型:解答题难度:中档来源:不详

答案

class="stub"7
9
-class="stub"3
9
=class="stub"4
9
class="stub"7
8
-class="stub"6
8
=class="stub"1
8
class="stub"5
6
-class="stub"4
6
=class="stub"1
6
class="stub"11
12
-class="stub"6
12
=class="stub"5
12
class="stub"14
20
-class="stub"3
20
=class="stub"11
20
class="stub"11
15
-class="stub"4
15
=class="stub"7
15
1-class="stub"3
8
=class="stub"8
8
-class="stub"3
8
=class="stub"5
8
1-class="stub"1
7
=class="stub"7
7
-class="stub"1
7
=class="stub"6
7
1-class="stub"4
5
=class="stub"5
5
-class="stub"4
5
=class="stub"1
5

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