To order a set of whole numbers, compare the numbers in pairs

to list the numbers from least to greatest or greatest to least.

First, compare the digits in the thousands place of each number.

The numbers all have a 4 in the thousands place, so compare the digits in the hundreds place of each number.

1 < 6

Since 1 < 6, 4,186 and 4,168 are less than 4,618 and 4,681.

Next, compare the digits in the tens places of 4,186 and 4,168.

6 < 8

Since 6 < 8, 4,168 < 4,186.

Then, compare the digits in the tens places of 4,618 and 4,681.

1 < 8

Since 1 < 8, 4,618 < 4,681.

So, the numbers in order from least to greatest are

4,168, 4,186, 4,618, 4,681, and the numbers in order from greatest to least are 4,681, 4,618, 4,186, 4,168.