Find the following values without a calculator.
For (c), give your answer only in numbers. (Eg 1, 2)
- 21 = ____ tens 1 ones
- 51 = 5 tens ____ ones
- 72 = ____ tens ____ ones
(a)
21
= 20 + 1
= 2 tens 1 ones
(b)
51
= 50 + 1
= 5 tens 1 ones
(c)
72
= 70 + 2
= 7 tens 2 ones
Answer(s): (a) 2; (b) 1; (c) 7, 2