Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 120 + 1 = ______
- 20 + 39 = _____
- 436 + 421 = _____
- 2673 + 611 = _____
(a)
120 + 1 = 121
(b)
20 + 39 = 59
(c)
436 + 421 = 857
(d)
2673 + 611 = 3284
Answer(s): 121, 59, 857, 3284