Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 19 ones = _____
- 7 tens = _____
- 3 tens 3 ones = _____
- 4 tens 17 ones = _____
(a)
19 ones
= 19 x 1
= 19
(b)
7 tens
= 7 x 10
= 70
(c)
3 tens 3 ones
= 3 x 10 + 3 x 1
= 30 + 3
= 33
(d)
4 tens 17 ones
= 4 x 10 + 17 x 1
= 40 + 17
= 57
Answer(s): 19, 70, 33, 57