Level 1
What is the missing numerator in 45 = ?20?
2 m
Level 2
Find the missing letters in the equation. 912 = A4 = 6B.
  1. A
  2. B
2 m
Level 2
Find A.
12A = 2045
2 m
Level 2
5030 = (a)3 = (b)15 = 20(c)
3 m
Level 2
34 = (a)8= 15(b) = (c)28 = (d)4000
2 m