Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 57 ones = _____
- 9 tens = _____
- 4 tens 7 ones = _____
- 7 tens 14 ones = _____
(a)
57 ones
= 57 x 1
= 57
(b)
9 tens
= 9 x 10
= 90
(c)
4 tens 7 ones
= 4 x 10 + 7 x 1
= 40 + 7
= 47
(d)
7 tens 14 ones
= 7 x 10 + 14 x 1
= 70 + 14
= 84
Answer(s): 57, 90, 47, 84