Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 20 - 6 = _____
- 800 - 11 = _____
- 90 - 50 = _____
- 200 - 21 = _____
(a)
20 - 6 = 14
(b)
800 - 11 = 789
(c)
90 - 50 = 40
(d)
200 - 21 = 179
Answer(s): 14, 789, 40, 179