Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 623 + 1 = ______
- 20 + 35 = _____
- 533 + 220 = _____
- 2970 + 415 = _____
(a)
623 + 1 = 624
(b)
20 + 35 = 55
(c)
533 + 220 = 753
(d)
2970 + 415 = 3385
Answer(s): 624, 55, 753, 3385