Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 25 ones = _____
- 5 tens = _____
- 4 tens 9 ones = _____
- 9 tens 12 ones = _____
(a)
25 ones
= 25 x 1
= 25
(b)
5 tens
= 5 x 10
= 50
(c)
4 tens 9 ones
= 4 x 10 + 9 x 1
= 40 + 9
= 49
(d)
9 tens 12 ones
= 9 x 10 + 12 x 1
= 90 + 12
= 102
Answer(s): 25, 50, 49, 102