Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 7212 - 1 = _____
- 8191 - 10 = _____
- 7536 - 100 = _____
- 8215 - 1000 = _____
(a)
7212 - 1 = 7211
(b)
8191 - 10 = 8181
(c)
7536 - 100 = 7436
(d)
8215 - 1000 = 7215
Answer(s): 7211, 8181, 7436, 7215