Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 500 - 80 + 700 = _______
- 616 = 500 + _______ + 90
- 6942 = 6000 + _______ + 2
- 2353 = 2050 + _______
(a)
500 - 80 + 700
= 500 + 700 - 80
= 1200 - 80
= 1120
(b)
616 = 500 + ______ + 90
616 = 500 + 90 + ______
616 = 590 + ______
616 - 590 = 26
(c)
6942 = 6000 + ______ + 2
6942 = 6000 + 2 + ______
6942 = 6002 + ______
6942 - 6002 = 940
(d)
2353 = 2050 + ______
2353 - 2050 = 303
Answer(s): 1120, 26, 940, 303