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