Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 8 tens + 7 = _____
- 5 hundreds + 3 = _____
- 5 hundreds + 3 tens = _____
- 39 tens + 23 tens = _____
(a)
8 tens + 7 = 80 + 7 = 23
(b)
5 hundreds + 3 = 500 + 3 = 503
(c)
5 hundreds + 3 tens = 500 + 30 = 530
(d)
39 tens + 23 tens = 390 + 230 = 620
Answer(s): 87, 503, 530, 620