Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 9988 = 9000 + _______ + 80
- 8322 = 300 + _______ + 20
- 40 - 3 x 9 = _______
- 10 + 18 ÷ 18 = _______
(a)
9988 = 9000 + _______ + 80
9000 + 80 = 9080
9988 - 9080 = 908
(b)
8322 = 300 + _____ + 20
300 + 20 = 320
8322 - 320 = 8002
(c)
40 - 3 x 9
= 40 - 27
= 13
(d)
10 + 18 ÷ 18
= 10 + 1
= 11
Answer(s): 908, 8002, 13, 11