Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 4 + 40 = _____
- 36 + 21 = _____
- 21 + 48 = _____
- 52 + 40 = _____
(a)
4 + 40 = 44
(b)
36 + 21 = 57
(c)
21 + 48 = 69
(d)
52 + 40 = 92
Answer(s): 44, 57, 69, 92