Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 7 + 10 = _____
- 1 + 29 = _____
- 13 + 59 = _____
- 43 + 27 = _____
(a)
7 + 10 = 17
(b)
1 + 29 = 30
(c)
13 + 59 = 72
(d)
43 + 27 = 70
Answer(s): 17, 30, 72, 70