Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 20 - 10 = _____
- 38 - 10 = _____
- 63 - 10 = _____
- 92 - 10 = _____
(a)
20 - 10 = 10
(b)
38 - 10 = 28
(c)
63 - 10 = 53
(d)
92 - 10 = 82
Answer(s): 10, 28, 53, 82