Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 100 + 30 + 9 = _____
- 3000 + 200 + 90 = _____
- 8000 + 900 + 7 = _____
- 7000 + 200 + 50 = _____
(a)
100 + 30 + 9 = 139
(b)
3000 + 200 + 90 = 3290
(c)
8000 + 900 + 7 = 8907
(d)
7000 + 200 + 50 = 7250
Answer(s): 139, 3290, 8907, 7250