问题 解答题
口算
15÷0.25=1.5×
2
5
=
5
9
×1.8=
2.5×0.4=32×2.5=
24×
3
8
=
2.4+1.6=
5
12
÷
5
6
=
5
7
×
21
25
=
1
4
÷25%=
答案

15÷0.25=60;1.5×
2
5
=0.6;
5
9
×1.8=1;
2.5×0.4=1;32×2.5=80;
24×
3
8
=9;
2.4+1.6=4;
5
12
÷
5
6
=
1
2
5
7
×
21
25
=
3
5
1
4
÷25%=1.

填空题
单项选择题