Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 800 + 10 + 5 = _____
- 8000 + 700 + 40 = _____
- 9000 + 800 + 9 = _____
- 5000 + 300 + 70 = _____
(a)
800 + 10 + 5 = 815
(b)
8000 + 700 + 40 = 8740
(c)
9000 + 800 + 9 = 9809
(d)
5000 + 300 + 70 = 5370
Answer(s): 815, 8740, 9809, 5370