Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 21 ones = _____
- 6 tens = _____
- 2 tens 9 ones = _____
- 2 tens 14 ones = _____
(a)
21 ones
= 21 x 1
= 21
(b)
6 tens
= 6 x 10
= 60
(c)
2 tens 9 ones
= 2 x 10 + 9 x 1
= 20 + 9
= 29
(d)
2 tens 14 ones
= 2 x 10 + 14 x 1
= 20 + 14
= 34
Answer(s): 21, 60, 29, 34