Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 8 + 19 = _____
- 9 + 21 = _____
- 25 + 42 = _____
- 41 + 28 = _____
(a)
8 + 19 = 27
(b)
9 + 21 = 30
(c)
25 + 42 = 67
(d)
41 + 28 = 69
Answer(s): 27, 30, 67, 69