Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 7 + 42 = _____
- 37 + 20 = _____
- 21 + 41 = _____
- 55 + 44 = _____
(a)
7 + 42 = 49
(b)
37 + 20 = 57
(c)
21 + 41 = 62
(d)
55 + 44 = 99
Answer(s): 49, 57, 62, 99