Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 9 + 40 = _____
- 30 + 29 = _____
- 21 + 40 = _____
- 52 + 46 = _____
(a)
9 + 40 = 49
(b)
30 + 29 = 59
(c)
21 + 40 = 61
(d)
52 + 46 = 98
Answer(s): 49, 59, 61, 98