问题 解答题
4
5
×10=
6
7
÷
2
7
=
4
5
÷80%=
8×12.%=
4
21
×0×
10
11
=
3
5
-
3
7
=
0.5+
1
4
=
5
8
×
8
7
=
9
10
÷3=
3
5
-
3
7
)×
1
2
=
答案

4
5
×10=8;
6
7
÷
2
7
=3;
4
5
÷80%=1;

8×12%=0.96;

4
21
×0×
10
11
=0;
3
5
-
3
7
=
6
35

0.5+

1
4
=0.75;
5
8
×
8
7
=
5
7
9
10
÷3=
3
10

3
5
-
3
7
)×
1
2
=
3
35

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