Question
Find the value of 1 unit.
  1. 1 u - 4 = 8
  2. 9 = 1 u - 1
  3. 10 - 9 = 1 u - 6
  4. 7 + 3 = 1 u - 10
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 - 4 = 8
  2. 9 = 1 u - 1
  3. 10 - 9 = 1 u - 6
  4. 7 + 3 = 1 u - 10