问题 解答题
直接写出得数:
40×70=
1
2
+
1
3
=
5
6
-
2
3
=
3600÷18=3.14×9=
0.25×4=5.4-3
1
5
=
1
4
+
1
4
-
1
4
+
1
4
=
答案

40×70=2800,
1
2
+
1
3
=
5
6
5
6
-
2
3
=
1
6
3600÷18=200,3.14×9=28.26,
0.25×4=1,5.4-3
1
5
=2.2,
1
4
+
1
4
-
1
4
+
1
4
=
1
2
故答案为:2800,
5
6
1
6
,200,28.26,1,2.2,
1
2

单项选择题 A1/A2型题
单项选择题