问题 解答题
直接写出得数:
4.8+4.2=______;
2.6×3=______;5.6÷7=______;0.8÷8=______;
25×1.2=______;
2
7
×2=______;
7
12
+
1
2
=______;
5-
3
7
=______;
1
4
+
2
3
=______;
3
4
÷
1
2
=______.
答案

4.8+4.2=9;2.6×3=7.8;5.6÷7=0.8;0.8÷8=0.1;
25×1.2=30;
2
7
×2=
4
7
7
12
+
1
2
=
13
12
5-
3
7
=4
4
7
1
4
+
2
3
=
11
12
3
4
÷
1
2
=
3
2
故答案为:9,7.8,0.8,0.1,30,
4
7
13
12
,4
4
7
11
12
3
2

单项选择题
单项选择题