order these in least to greatest

21,40,48,26,32,31

21, 26, 31, 32, 40, 48

To arrange these numbers in least to greatest order, follow these steps:

Step 1: Compare the first two numbers, 21 and 40.
- Since 21 is smaller than 40, we know that 21 should come first.

Step 2: Next, compare the next number, 48, with 40.
- Since 48 is greater than 40, we know that 48 should come after 40.

Step 3: Continue this process by comparing each number with the ones that have already been placed.
- 26 is smaller than the previous number, 48, so it should be placed before 48.
- 32 is greater than 26, so it should come after 26.
- 31 is smaller than 32, so it should be placed before 32.

Therefore, the numbers in ascending order from least to greatest are: 21, 26, 31, 32, 40, 48.