问题 解答题
直接写出下面各题的得数.
0.5×0.4=

3+2.3=

0.22=

15-0.15=
28+32=
3
14
=
1
2
-
1
3
=
5÷5%=
5
7
=
1
12
+
5
12
=
3
4
×
8
15
=
3
8
+8
=
答案

0.5×0.4=0.2,

3+2.3=5.3,

0.22=0.04,

15-0.15=14.85,

28+32=60,
3
14
=0,
1
2
-
1
3
=
1
6
5÷5%=100,
5
7
=
7
5
1
12
+
5
12
=
1
2
3
4
×
8
15
=
2
5
3
8
+8
=8
3
8

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