直接写出得数:①29+39=②812-512=③1-710=④12-13=⑤78-28=⑥4+67⑦715-215=⑧712-512=⑨3-12=⑩512+512=-数学

题目简介

直接写出得数:①29+39=②812-512=③1-710=④12-13=⑤78-28=⑥4+67⑦715-215=⑧712-512=⑨3-12=⑩512+512=-数学

题目详情

直接写出得数:
2
9
+
3
9
=
8
12
-
5
12
=
③1-
7
10
=
1
2
-
1
3
=
7
8
-
2
8
=
⑥4+
6
7
7
15
-
2
15
=
7
12
-
5
12
=
⑨3-
1
2
=
5
12
+
5
12
=
题型:解答题难度:中档来源:不详

答案

class="stub"2
9
+class="stub"3
9
=class="stub"5
9
class="stub"8
12
-class="stub"5
12
=class="stub"1
4
③1-class="stub"7
10
=class="stub"3
10
class="stub"1
2
-class="stub"1
3
=class="stub"1
6
class="stub"7
8
-class="stub"2
8
=class="stub"5
8
⑥4+class="stub"6
7
=4class="stub"6
7
class="stub"7
15
-class="stub"2
15
=class="stub"1
3
class="stub"7
12
-class="stub"5
12
=class="stub"1
6
⑨3-class="stub"1
2
=2class="stub"1
2
class="stub"5
12
+class="stub"5
12
=1

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