Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 13 ones = _____
- 9 tens = _____
- 2 tens 6 ones = _____
- 7 tens 11 ones = _____
(a)
13 ones
= 13 x 1
= 13
(b)
9 tens
= 9 x 10
= 90
(c)
2 tens 6 ones
= 2 x 10 + 6 x 1
= 20 + 6
= 26
(d)
7 tens 11 ones
= 7 x 10 + 11 x 1
= 70 + 11
= 81
Answer(s): 13, 90, 26, 81