52 x 54 =
56
x12 / x3 =
x9
50
610 x 612=
622
p15 /p5 =
p10
60 - 70
y5 x y7 =
y12
55/56
5-1
x0 + x0
4p3 x 3p13 =
12p16
20m16 / 4m15 =
6p0 - 60
5
- 3m14 x 8m-5 =
-24m9
2x7/4x3 =
1/2 x4
m6 x (m4)0
m6