Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 30 ones = _____
- 5 tens = _____
- 2 tens 4 ones = _____
- 4 tens 12 ones = _____
(a)
30 ones
= 30 x 1
= 30
(b)
5 tens
= 5 x 10
= 50
(c)
2 tens 4 ones
= 2 x 10 + 4 x 1
= 20 + 4
= 24
(d)
4 tens 12 ones
= 4 x 10 + 12 x 1
= 40 + 12
= 52
Answer(s): 30, 50, 24, 52