Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 19 ones = _____
- 8 tens = _____
- 2 tens 4 ones = _____
- 1 tens 17 ones = _____
(a)
19 ones
= 19 x 1
= 19
(b)
8 tens
= 8 x 10
= 80
(c)
2 tens 4 ones
= 2 x 10 + 4 x 1
= 20 + 4
= 24
(d)
1 tens 17 ones
= 1 x 10 + 17 x 1
= 10 + 17
= 27
Answer(s): 19, 80, 24, 27