Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 500 - 50 + 200 = _______
- 793 = 500 + _______ + 30
- 8459 = 8000 + _______ + 9
- 9358 = 9050 + _______
(a)
500 - 50 + 200
= 500 + 200 - 50
= 700 - 50
= 650
(b)
793 = 500 + ______ + 30
793 = 500 + 30 + ______
793 = 530 + ______
793 - 530 = 263
(c)
8459 = 8000 + ______ + 9
8459 = 8000 + 9 + ______
8459 = 8009 + ______
8459 - 8009 = 450
(d)
9358 = 9050 + ______
9358 - 9050 = 308
Answer(s): 650, 263, 450, 308