问题 解答题
直接写出得数.
48×25%=
24.15÷3=
7
9
=
1
3
+
1
5
)×15=
0.3×2÷0.3×2=
5-
3
4
-
1
4
=
5
8
×
1
2
=
1
2
÷
1
2
÷
1
2
=
2
9
×
3
8
=
21÷
3
7
=
答案

48×25%=12,24.15÷3=8.05,
7
9
=
9
7
1
3
+
1
5
)×15=8,
0.3×2÷0.3×2=4,
5-
3
4
-
1
4
=4,
5
8
×
1
2
=
5
16
1
2
÷
1
2
÷
1
2
=2,
2
9
×
3
8
=
1
12
21÷
3
7
=49.

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