Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 8 + 13 = _____
- 1 + 26 = _____
- 29 + 49 = _____
- 59 + 12 = _____
(a)
8 + 13 = 21
(b)
1 + 26 = 27
(c)
29 + 49 = 78
(d)
59 + 12 = 71
Answer(s): 21, 27, 78, 71