问题 解答题
直接写得数:
275÷4÷25=______;
4.8×25%=______;
1
2
÷
1
2
÷
1
6
=______;
2
3
×5÷
2
3
×5=______;
1
4
-
1
5
+
3
4
=______;
2.74-1.4=______;
9.9×99+9.9=______;
1
100
×12.5=______.
答案

275÷4÷25=2.75;4.8×25%=1.2;
1
2
÷
1
2
÷
1
6
=6;
2
3
×5÷
2
3
×5=25;
1
4
-
1
5
+
3
4
=
4
5
2.74-1.4=1.34;
9.9×99+9.9=990;
1
100
×12.5=1.

单项选择题
单项选择题 A1型题