Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 40 ones = _____
- 9 tens = _____
- 2 tens 7 ones = _____
- 3 tens 16 ones = _____
(a)
40 ones
= 40 x 1
= 40
(b)
9 tens
= 9 x 10
= 90
(c)
2 tens 7 ones
= 2 x 10 + 7 x 1
= 20 + 7
= 27
(d)
3 tens 16 ones
= 3 x 10 + 16 x 1
= 30 + 16
= 46
Answer(s): 40, 90, 27, 46