Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 86 ones = _____
- 7 tens = _____
- 3 tens 2 ones = _____
- 2 tens 15 ones = _____
(a)
86 ones
= 86 x 1
= 86
(b)
7 tens
= 7 x 10
= 70
(c)
3 tens 2 ones
= 3 x 10 + 2 x 1
= 30 + 2
= 32
(d)
2 tens 15 ones
= 2 x 10 + 15 x 1
= 20 + 15
= 35
Answer(s): 86, 70, 32, 35