Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 19 ones = _____
- 9 tens = _____
- 3 tens 3 ones = _____
- 2 tens 15 ones = _____
(a)
19 ones
= 19 x 1
= 19
(b)
9 tens
= 9 x 10
= 90
(c)
3 tens 3 ones
= 3 x 10 + 3 x 1
= 30 + 3
= 33
(d)
2 tens 15 ones
= 2 x 10 + 15 x 1
= 20 + 15
= 35
Answer(s): 19, 90, 33, 35