Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 + 14 = _____
- 1 + 18 = _____
- 39 + 58 = _____
- 58 + 21 = _____
(a)
3 + 14 = 17
(b)
1 + 18 = 19
(c)
39 + 58 = 97
(d)
58 + 21 = 79
Answer(s): 17, 19, 97, 79