Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 721 + 4 = ______
- 28 + 30 = _____
- 131 + 121 = _____
- 2775 + 214 = _____
(a)
721 + 4 = 725
(b)
28 + 30 = 58
(c)
131 + 121 = 252
(d)
2775 + 214 = 2989
Answer(s): 725, 58, 252, 2989