Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 4624 = 4000 + _______ + 20
- 3225 = 200 + _______ + 20
- 30 - 5 x 3 = _______
- 20 + 9 ÷ 3 = _______
(a)
4624 = 4000 + _______ + 20
4000 + 20 = 4020
4624 - 4020 = 604
(b)
3225 = 200 + _____ + 20
200 + 20 = 220
3225 - 220 = 3005
(c)
30 - 5 x 3
= 30 - 15
= 15
(d)
20 + 9 ÷ 3
= 20 + 3
= 23
Answer(s): 604, 3005, 15, 23