Grade 1 Number Comparison: Ordering Numbers

Worked examples

Real problems from the practice worksheets, solved one step at a time.

1. Example 1

   Order from least to greatest (comma-separated): 14, 3, 16

   1. Compare the numbers place by place, starting with the biggest place on the left.
   2. 3 < 14: 3 has 1 digit and 14 has 2, so 14 is greater.
   3. 14 < 16: the tens digits match, and 4 ones < 6 ones.
   4. So from least to greatest: 3, 14, 16.

   Answer: 3, 14, 16

2. Example 2

   Order from least to greatest (comma-separated): 18, 13, 20

   1. Compare the numbers place by place, starting with the biggest place on the left.
   2. 13 < 18: the tens digits match, and 3 ones < 8 ones.
   3. 18 < 20: 1 ten < 2 tens.
   4. So from least to greatest: 13, 18, 20.

   Answer: 13, 18, 20

3. Example 3

   Order from least to greatest (comma-separated): 7, 20, 3

   1. Compare the numbers place by place, starting with the biggest place on the left.
   2. 3 < 7: 3 comes before 7 when you count.
   3. 7 < 20: 7 has 1 digit and 20 has 2, so 20 is greater.
   4. So from least to greatest: 3, 7, 20.

   Answer: 3, 7, 20