How to Order Three-Digit Numbers from Least to Greatest

📚 Quick Study Guide

• 🔢 Understanding Place Value: The value of a digit depends on its position (hundreds, tens, ones). For example, in 325, 3 is in the hundreds place, 2 is in the tens place, and 5 is in the ones place.
• ⚖️ Comparing Hundreds: When comparing three-digit numbers, start by comparing the digits in the hundreds place. The number with the smaller digit in the hundreds place is smaller. For example, 245 is smaller than 512.
• 🤔 If Hundreds are Equal: If the hundreds digits are the same, compare the digits in the tens place. For example, if you are comparing 325 and 341, the number 325 is smaller than 341 because 2 is less than 4.
• 🧐 If Hundreds and Tens are Equal: If the hundreds and tens digits are the same, compare the digits in the ones place. For example, when comparing 456 and 458, 456 is smaller than 458.
• 💡 Ordering Numbers: To order numbers from least to greatest, arrange them from the smallest to the largest, following the place value comparison steps.

Practice Quiz

1. Question 1: Which of the following lists is in order from least to greatest?
   1. 123, 132, 213, 231
   2. 321, 312, 231, 213
   3. 132, 123, 231, 213
   4. 231, 213, 132, 123
2. Question 2: Order the following numbers from least to greatest: 456, 465, 546.
   1. 546, 465, 456
   2. 456, 546, 465
   3. 456, 465, 546
   4. 465, 456, 546
3. Question 3: Which number is the smallest: 678, 687, 768?
   1. 687
   2. 768
   3. 678
   4. They are all the same
4. Question 4: Arrange these numbers from least to greatest: 901, 899, 910.
   1. 901, 910, 899
   2. 899, 901, 910
   3. 910, 901, 899
   4. 899, 910, 901
5. Question 5: What comes next in the sequence (from least to greatest): 234, ___, 236?
   1. 237
   2. 233
   3. 235
   4. 238
6. Question 6: Which of the following numbers is the largest: 555, 550, 505?
   1. 505
   2. 550
   3. 555
   4. They are equal
7. Question 7: Put these numbers in order from least to greatest: 789, 798, 879
   1. 879, 798, 789
   2. 789, 879, 798
   3. 798, 789, 879
   4. 789, 798, 879