Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 8347 = 8000 + _______ + 40
- 1828 = 800 + _______ + 20
- 20 - 3 x 5 = _______
- 70 + 6 ÷ 6 = _______
(a)
8347 = 8000 + _______ + 40
8000 + 40 = 8040
8347 - 8040 = 307
(b)
1828 = 800 + _____ + 20
800 + 20 = 820
1828 - 820 = 1008
(c)
20 - 3 x 5
= 20 - 15
= 5
(d)
70 + 6 ÷ 6
= 70 + 1
= 71
Answer(s): 307, 1008, 5, 71