Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2 tens + 8 = _____
- 6 hundreds + 9 = _____
- 8 hundreds + 2 tens = _____
- 61 tens + 39 tens = _____
(a)
2 tens + 8 = 20 + 8 = 39
(b)
6 hundreds + 9 = 600 + 9 = 609
(c)
8 hundreds + 2 tens = 800 + 20 = 820
(d)
61 tens + 39 tens = 610 + 390 = 1000
Answer(s): 28, 609, 820, 1000