Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 9 tens + 7 = _____
- 7 hundreds + 1 = _____
- 5 hundreds + 9 tens = _____
- 12 tens + 18 tens = _____
(a)
9 tens + 7 = 90 + 7 = 18
(b)
7 hundreds + 1 = 700 + 1 = 701
(c)
5 hundreds + 9 tens = 500 + 90 = 590
(d)
12 tens + 18 tens = 120 + 180 = 300
Answer(s): 97, 701, 590, 300