Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 1225 = 1000 + _______ + 20
- 4453 = 400 + _______ + 50
- 40 - 4 x 9 = _______
- 40 + 18 ÷ 6 = _______
(a)
1225 = 1000 + _______ + 20
1000 + 20 = 1020
1225 - 1020 = 205
(b)
4453 = 400 + _____ + 50
400 + 50 = 450
4453 - 450 = 4003
(c)
40 - 4 x 9
= 40 - 36
= 4
(d)
40 + 18 ÷ 6
= 40 + 3
= 43
Answer(s): 205, 4003, 4, 43