问题 解答题
直接写得数
10÷
5
3
=
1
2
-
2
5
=
4
5
×
5
7
=
4
5
÷
4
5
+
1
7
=
3
8
=
5
6
=
0.8-
3
4
=
2
3
×1.2-0.2
=
答案

①10÷

5
3
=6; ②
1
2
-
2
5
=
1
10
; ③
4
5
×
5
7
=
4
7
; ④
4
5
÷
4
5
+
1
7
=
8
7

⑤1÷

3
8
=
8
3
; ⑥9×
5
6
=
15
2
; ⑦0.8-
3
4
=0.05; ⑧
2
3
×1.2-0.2
=0.6.

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