Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 + 46 = _____
- 31 + 23 = _____
- 23 + 41 = _____
- 51 + 42 = _____
(a)
3 + 46 = 49
(b)
31 + 23 = 54
(c)
23 + 41 = 64
(d)
51 + 42 = 93
Answer(s): 49, 54, 64, 93