Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 27 ones = _____
- 7 tens = _____
- 3 tens 8 ones = _____
- 5 tens 18 ones = _____
(a)
27 ones
= 27 x 1
= 27
(b)
7 tens
= 7 x 10
= 70
(c)
3 tens 8 ones
= 3 x 10 + 8 x 1
= 30 + 8
= 38
(d)
5 tens 18 ones
= 5 x 10 + 18 x 1
= 50 + 18
= 68
Answer(s): 27, 70, 38, 68