Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 15 ones = _____
- 8 tens = _____
- 4 tens 8 ones = _____
- 6 tens 12 ones = _____
(a)
15 ones
= 15 x 1
= 15
(b)
8 tens
= 8 x 10
= 80
(c)
4 tens 8 ones
= 4 x 10 + 8 x 1
= 40 + 8
= 48
(d)
6 tens 12 ones
= 6 x 10 + 12 x 1
= 60 + 12
= 72
Answer(s): 15, 80, 48, 72