Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 8492 = 8000 + _______ + 90
- 4692 = 600 + _______ + 90
- 60 - 4 x 4 = _______
- 30 + 20 ÷ 10 = _______
(a)
8492 = 8000 + _______ + 90
8000 + 90 = 8090
8492 - 8090 = 402
(b)
4692 = 600 + _____ + 90
600 + 90 = 690
4692 - 690 = 4002
(c)
60 - 4 x 4
= 60 - 16
= 44
(d)
30 + 20 ÷ 10
= 30 + 2
= 32
Answer(s): 402, 4002, 44, 32