Question
Find the following values without a calculator.
  1. 2487 = _____ + 400 + 87
  2. 4548 = 4000 + _____ + 40 + 8
  3. 6880 = 6000 + 800 + _____
3 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

Find the following values without a calculator.
  1. 2487 = _____ + 400 + 87
  2. 4548 = 4000 + _____ + 40 + 8
  3. 6880 = 6000 + 800 + _____