Question
PSLE
Find the value of the following when r = 3.
  1. 15 - 4r
  2. 4r - 56
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
Find the value of the following when r = 3.
  1. 15 - 4r
  2. 4r - 56