Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 84 ones = _____
- 7 tens = _____
- 3 tens 1 ones = _____
- 8 tens 11 ones = _____
(a)
84 ones
= 84 x 1
= 84
(b)
7 tens
= 7 x 10
= 70
(c)
3 tens 1 ones
= 3 x 10 + 1 x 1
= 30 + 1
= 31
(d)
8 tens 11 ones
= 8 x 10 + 11 x 1
= 80 + 11
= 91
Answer(s): 84, 70, 31, 91