Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 27 ones = _____
- 8 tens = _____
- 3 tens 8 ones = _____
- 1 tens 20 ones = _____
(a)
27 ones
= 27 x 1
= 27
(b)
8 tens
= 8 x 10
= 80
(c)
3 tens 8 ones
= 3 x 10 + 8 x 1
= 30 + 8
= 38
(d)
1 tens 20 ones
= 1 x 10 + 20 x 1
= 10 + 20
= 30
Answer(s): 27, 80, 38, 30