Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 30 - 10 = _____
- 46 - 10 = _____
- 65 - 10 = _____
- 87 - 10 = _____
(a)
30 - 10 = 20
(b)
46 - 10 = 36
(c)
65 - 10 = 55
(d)
87 - 10 = 77
Answer(s): 20, 36, 55, 77