105-67= 96÷12= 0.84+2.1= 0.2×0.5=
3.6÷18= 5×2.5= 40×1.4= 5.4-1.8=
①x+2.4=5.5
②9.5x-5x=18
③6-x=1.8
④x÷0.6﹦3.5
⑤*3×1.5+2x=11.5
⑥*x-3.5+4.5=12
1
2
3
4
5
6
7
8
9
10
11
12
A
75
80
62
45
53
42
38
46
35
32
37
30
B
40
43
39
50
52