1. Comparing and Ordering Whole Numbers
Lesson 1-2
ACOS N1

2. You can use place value to compare and order whole numbers.
Key Idea
You can use place value to compare and order whole numbers.

3. What the Symbols Mean > is greater than < is less than
= is equal to

4. How do you compare and order whole numbers?
Which is greater: 28,748 or 28,527?
Line up the digits by place value.
28,748
28,527
Look at the digits from left to right. Find the first place where the digits are different.
The 2’s are the same, 8’s are the same, the 7 and 5 are different.
Compare the values of the digits. The numbers compare the same way.
7 hundreds > 5 hundreds

5. Comparing More Than Two Numbers
To compare more than two numbers, use the same steps:
28, ,746 is the greatest number. It has the ```````most hundreds.
28, Then compare the other two numbers.
28, ,562 is greater than 28,526. It has more tens.
You can write the comparison as:
28,846 is greater than 28,562 and/or 28,526.
28,846 > 28,562
28,562 is less than 28, ,562 < 28,846

6. Write the numbers in order from Least to Greatest
85, , ,462
_____________________________
198, , , ,958
______________________________

7. Comparing Numbers 285 _____ 322 9,728 ____9,278
Compare the numbers. Write < or >.
285 _____ 322 9,728 ____9,278
45,883 _____45, ,070 _____ 50,712
561,040 ____ 560, ,324 _____8,314

8. ?????
If a number is greater than 900,000 and less than 901,000, what digit will be in the thousands place of the number? _______
Explain why you think so. ____________________________
______________________________

9. We will complete this together.
Group Practice
Math Workbook p. R 1-2
We will complete this together.

10. Homework Math Workbook p. P 1-2.
This will be presented and noted as completed when I check your agenda in the morning.