Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 120 + 9 = ______
- 22 + 33 = _____
- 436 + 421 = _____
- 3077 + 310 = _____
(a)
120 + 9 = 129
(b)
22 + 33 = 55
(c)
436 + 421 = 857
(d)
3077 + 310 = 3387
Answer(s): 129, 55, 857, 3387