问题 解答题
1.25:0.25=
X
1.6
1.2
2.5
=
3
x
3
4
:X=3:12.
答案

(1)1.25:0.25=

x
1.6

0.25x=1.25×1.6,

0.25x÷0.25=2÷0.25,

x=8;

(2)

1.2
2.5
=
3
x

1.2x=2.5×3,

1.2x÷1.2=7.5÷1.2,

x=6.25;

(3)

3
4
:x=3:12,

3x=12×

3
4

3x÷3=9÷3,

x=3.

单项选择题 A1/A2型题
问答题 简答题