Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 23 - 10 = _____
- 46 - 10 = _____
- 66 - 10 = _____
- 91 - 10 = _____
(a)
23 - 10 = 13
(b)
46 - 10 = 36
(c)
66 - 10 = 56
(d)
91 - 10 = 81
Answer(s): 13, 36, 56, 81