Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 79 ones = _____
- 8 tens = _____
- 3 tens 8 ones = _____
- 9 tens 14 ones = _____
(a)
79 ones
= 79 x 1
= 79
(b)
8 tens
= 8 x 10
= 80
(c)
3 tens 8 ones
= 3 x 10 + 8 x 1
= 30 + 8
= 38
(d)
9 tens 14 ones
= 9 x 10 + 14 x 1
= 90 + 14
= 104
Answer(s): 79, 80, 38, 104