Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 19 ones = _____
- 8 tens = _____
- 4 tens 1 ones = _____
- 7 tens 18 ones = _____
(a)
19 ones
= 19 x 1
= 19
(b)
8 tens
= 8 x 10
= 80
(c)
4 tens 1 ones
= 4 x 10 + 1 x 1
= 40 + 1
= 41
(d)
7 tens 18 ones
= 7 x 10 + 18 x 1
= 70 + 18
= 88
Answer(s): 19, 80, 41, 88