问题 解答题
直接写出得数:
0.66÷0.3=2.5×4=
2
3
+
1
9
=
1-
8
15
=
5
12
+
7
12
=
1
6
-
1
7
=
1.4×0.3=
2
15
+
7
10
=
9
20
+
11
20
=
7
8
-
3
4
=
答案

0.66÷0.3=2.22.5×4=10
2
3
+
1
9
=
7
9
1-
8
15
=
7
15
5
12
+
7
12
=1
1
6
-
1
7
=
1
42
1.4×0.3=0.42
2
15
+
7
10
=
5
6
9
20
+
11
20
=1
7
8
-
3
4
=
1
8

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