Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 3 tens + 1 = _____
- 5 hundreds + 7 = _____
- 4 hundreds + 6 tens = _____
- 99 tens + 23 tens = _____
(a)
3 tens + 1 = 30 + 1 = 23
(b)
5 hundreds + 7 = 500 + 7 = 507
(c)
4 hundreds + 6 tens = 400 + 60 = 460
(d)
99 tens + 23 tens = 990 + 230 = 1220
Answer(s): 31, 507, 460, 1220