Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 6 + 11 = _____
- 4 + 15 = _____
- 16 + 39 = _____
- 51 + 14 = _____
(a)
6 + 11 = 17
(b)
4 + 15 = 19
(c)
16 + 39 = 55
(d)
51 + 14 = 65
Answer(s): 17, 19, 55, 65