Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 40 ones = _____
- 9 tens = _____
- 3 tens 6 ones = _____
- 8 tens 12 ones = _____
(a)
40 ones
= 40 x 1
= 40
(b)
9 tens
= 9 x 10
= 90
(c)
3 tens 6 ones
= 3 x 10 + 6 x 1
= 30 + 6
= 36
(d)
8 tens 12 ones
= 8 x 10 + 12 x 1
= 80 + 12
= 92
Answer(s): 40, 90, 36, 92