Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 10 + 9 = _____
- 20 + 8 = _____
- 10 + 15 = _____
- 30 + 32 = _____
(a)
10 + 9 = 19
(b)
20 + 8 = 28
(c)
10 + 15 = 25
(d)
30 + 32 = 62
Answer(s): 19, 28, 25, 62