50 - 30
20
86 - 29
57
17 x 3
51
9 x 32 - 143
145
8 x 123
984
148/4
37
60 x 2.5 / 5
30
15 + K = 25 - K
5
20 x 6/5
24
m + (8+m) = 26
9
1/3 x 75 + 60 x 2/3
65
12 x 18 = P x 4
54
3√125
5
-5/4 / - 1/12
15
20/8 + 3/6
3
4^ a-5 =64
8
3 ^5
243
24/144 x 96
16
323/16 + 346/32
31
z/1.2 = 3/ 0.06
60