Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 29 - 10 = _____
- 42 - 10 = _____
- 61 - 10 = _____
- 71 - 10 = _____
(a)
29 - 10 = 19
(b)
42 - 10 = 32
(c)
61 - 10 = 51
(d)
71 - 10 = 61
Answer(s): 19, 32, 51, 61