Question
14 years ago, Lui was 7s years old.
  1. How old was Lui 5s years ago?
  2. How old will Lui be 3s years later?
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

14 years ago, Lui was 7s years old.
  1. How old was Lui 5s years ago?
  2. How old will Lui be 3s years later?