Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 54 ones = _____
- 7 tens = _____
- 2 tens 7 ones = _____
- 7 tens 18 ones = _____
(a)
54 ones
= 54 x 1
= 54
(b)
7 tens
= 7 x 10
= 70
(c)
2 tens 7 ones
= 2 x 10 + 7 x 1
= 20 + 7
= 27
(d)
7 tens 18 ones
= 7 x 10 + 18 x 1
= 70 + 18
= 88
Answer(s): 54, 70, 27, 88