Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 4 + 41 = _____
- 31 + 20 = _____
- 22 + 42 = _____
- 56 + 40 = _____
(a)
4 + 41 = 45
(b)
31 + 20 = 51
(c)
22 + 42 = 64
(d)
56 + 40 = 96
Answer(s): 45, 51, 64, 96