Question
Find the value of 1 unit.
  1. 1 u + 64 = 155
  2. 7 + 1 u = 18
  3. 5 = 1 u - 6
  4. 13 = 2 + 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 + 64 = 155
  2. 7 + 1 u = 18
  3. 5 = 1 u - 6
  4. 13 = 2 + 1 u