Find the following values without a calculator. Arrange the numbers from the smallest to the biggest.
- 21, 32, 13
- 456, 546, 645
- 221, 122, 121
(a)
(smallest) 13, 21, 32 (greatest)
(b)
(smallest) 456, 546, 645 (greatest)
(c)
(smallest) 121, 122, 221 (greatest)
Answer(s): (a) 13, 21, 32; (b) 456, 546, 645; (c) 121, 122, 221