Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 700 + 10 + 9 = _____
- 1000 + 800 + 20 = _____
- 2000 + 400 + 5 = _____
- 3000 + 600 + 40 = _____
(a)
700 + 10 + 9 = 719
(b)
1000 + 800 + 20 = 1820
(c)
2000 + 400 + 5 = 2405
(d)
3000 + 600 + 40 = 3640
Answer(s): 719, 1820, 2405, 3640