Question
Find the value of 1 unit.
  1. 1 u + 20 = 55
  2. 10 + 1 u = 11
  3. 8 = 1 u - 2
  4. 19 = 6 + 1 u
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

(c)

Click button first when a symbol is required. X

(d)

Click button first when a symbol is required. X

Find the value of 1 unit.
  1. 1 u + 20 = 55
  2. 10 + 1 u = 11
  3. 8 = 1 u - 2
  4. 19 = 6 + 1 u