《2025年通城学典计算能手四年级数学下册青岛版》

一、把下面每个方程和它的解连起来。

答案：

二、解方程。
0.8x = 1
x÷0.6 = 42
x - 15 = 7.2
x - 0.65 = 4.35
x + 0.07 = 13.2
2.5x = 1.2
x÷8 = 0.16______
x + 0.54 = 7.25
5x = 10.5
0.24x = 0.36
x - 3.6 = 6.34
4.8 + x = 12.4
x÷1.8 = 0.005
15x = 1.5
x - 2.7 = 7.3
35 + x = 110______
5x = 18
100x = 0.3
28x = 61.6
x÷15 = 1.6
x - 0.82 = 0.82
9.5 + x = 10.26
0.4x = 4
x÷0.7 = 1.05
x÷9 = 1.2
x - 0.78 = 1.65
1.9x = 5.32

答案： x = 1.25 x = 25.2
x = 22.2
x = 5 x = 13.13
x = 0.48
x = 1.28 x = 6.71
x = 2.1
x = 1.5 x = 9.94
x = 7.6
x = 0.009 x = 0.1
x = 10
x = 75 x = 3.6
x = 0.003
x = 2.2 x = 24
x = 1.64
x = 0.76 x = 10
x = 0.735
x = 10.8 x = 2.43
x = 2.8