Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 86 ones = _____
- 5 tens = _____
- 2 tens 8 ones = _____
- 1 tens 11 ones = _____
(a)
86 ones
= 86 x 1
= 86
(b)
5 tens
= 5 x 10
= 50
(c)
2 tens 8 ones
= 2 x 10 + 8 x 1
= 20 + 8
= 28
(d)
1 tens 11 ones
= 1 x 10 + 11 x 1
= 10 + 11
= 21
Answer(s): 86, 50, 28, 21