问题 解答题
直接写得数:
7
12
-
5
12
=
5
12
×2
=
24×
5
6
=
2
3
÷
3
2
=
1
2
+
3
4
=
1
6
-
1
12
=
5
27
÷
10
9
=
80×1.4=100×
8
25
=
240÷0.5=0.6×0.6=300×40%=
答案

7
12
-
5
12
=
1
6
5
12
×2
=
5
6
24×
5
6
=20,
2
3
÷
3
2
=
4
9
1
2
+
3
4
=
5
4
1
6
-
1
12
=
1
12
5
27
÷
10
9
=
1
6
80×1.4=112,100×
8
25
=32,
240÷0.5=480,0.6×0.64=0.384,300×40%=120.

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