Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 9836 = 9000 + _______ + 30
- 8419 = 400 + _______ + 10
- 50 - 4 x 8 = _______
- 80 + 15 ÷ 15 = _______
(a)
9836 = 9000 + _______ + 30
9000 + 30 = 9030
9836 - 9030 = 806
(b)
8419 = 400 + _____ + 10
400 + 10 = 410
8419 - 410 = 8009
(c)
50 - 4 x 8
= 50 - 32
= 18
(d)
80 + 15 ÷ 15
= 80 + 1
= 81
Answer(s): 806, 8009, 18, 81