Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 67 ones = _____
- 7 tens = _____
- 2 tens 2 ones = _____
- 4 tens 10 ones = _____
(a)
67 ones
= 67 x 1
= 67
(b)
7 tens
= 7 x 10
= 70
(c)
2 tens 2 ones
= 2 x 10 + 2 x 1
= 20 + 2
= 22
(d)
4 tens 10 ones
= 4 x 10 + 10 x 1
= 40 + 10
= 50
Answer(s): 67, 70, 22, 50