Question
Find the value of 1 unit.
  1. 1 u + 10 = 18
  2. 4 + 1 u = 7
  3. 8 = 1 u - 1
  4. 16 = 3 + 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 + 10 = 18
  2. 4 + 1 u = 7
  3. 8 = 1 u - 1
  4. 16 = 3 + 1 u