Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 9 + 40 = _____
- 32 + 23 = _____
- 20 + 48 = _____
- 50 + 47 = _____
(a)
9 + 40 = 49
(b)
32 + 23 = 55
(c)
20 + 48 = 68
(d)
50 + 47 = 97
Answer(s): 49, 55, 68, 97