Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 70 ones = _____
- 8 tens = _____
- 3 tens 7 ones = _____
- 7 tens 10 ones = _____
(a)
70 ones
= 70 x 1
= 70
(b)
8 tens
= 8 x 10
= 80
(c)
3 tens 7 ones
= 3 x 10 + 7 x 1
= 30 + 7
= 37
(d)
7 tens 10 ones
= 7 x 10 + 10 x 1
= 70 + 10
= 80
Answer(s): 70, 80, 37, 80