Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 60 ones = _____
- 5 tens = _____
- 2 tens 9 ones = _____
- 3 tens 10 ones = _____
(a)
60 ones
= 60 x 1
= 60
(b)
5 tens
= 5 x 10
= 50
(c)
2 tens 9 ones
= 2 x 10 + 9 x 1
= 20 + 9
= 29
(d)
3 tens 10 ones
= 3 x 10 + 10 x 1
= 30 + 10
= 40
Answer(s): 60, 50, 29, 40