Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 5817 = 5000 + _______ + 10
- 1785 = 700 + _______ + 80
- 80 - 2 x 4 = _______
- 70 + 8 ÷ 4 = _______
(a)
5817 = 5000 + _______ + 10
5000 + 10 = 5010
5817 - 5010 = 807
(b)
1785 = 700 + _____ + 80
700 + 80 = 780
1785 - 780 = 1005
(c)
80 - 2 x 4
= 80 - 8
= 72
(d)
70 + 8 ÷ 4
= 70 + 2
= 72
Answer(s): 807, 1005, 72, 72