Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 7 + 15 = _____
- 2 + 21 = _____
- 12 + 35 = _____
- 38 + 27 = _____
(a)
7 + 15 = 22
(b)
2 + 21 = 23
(c)
12 + 35 = 47
(d)
38 + 27 = 65
Answer(s): 22, 23, 47, 65