Comparing Numbers Through Millions 4 th grade NS 1.1 – Read and write whole numbers in the millions NS 1.2 – Order and compare whole numbers and decimals.

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Presentation transcript:

Comparing Numbers Through Millions 4 th grade NS 1.1 – Read and write whole numbers in the millions NS 1.2 – Order and compare whole numbers and decimals to two decimal places

Learning Objective We will compare numbers up to nine digits*. *digits are any one of the 10 number symbols

Greater than > Less than < Equal =

Comparing Numbers Comparing numbers is when we look at numbers and decide which number is greater, lesser, or if they are equal We use the symbols >, <, or = Examples: 145 > < 6, = 18 Non-examples: , x \ 5 What does it mean to compare numbers?

Which choice shows an example of comparing numbers? A.) B.) 234 < 243 How did you know? Frame: ___ shows comparing numbers because __________________.

Why is comparing numbers important? You will need to know how to compare numbers before you can do other skills in this chapter. When you are shopping you will want to know how to compare prices. It will be tested on the CST

Steps to compare numbers 1. Line up the numbers on your workmat. (start with the ones place) 2. Compare the digits from left to right 3. When the digits do not match the number with the bigger digit is greater! 4. Write the correct symbol, or =

749, Line up the numbers on the workmat. (start with the ones place) 2. Compare the digits from left to right 3. When the digits do not match the number with the bigger digit is greater, if they are the same the numbers are equal. 4. Write the correct symbol, or = Millions Thousands Ones Hundreds TensOnes, Hundred s TensOnes, Hundreds TensOnes,,,, What did I do to compare numbers? How did I line them up?

4,542, Line up the numbers on the workmat. (start with the ones place) 2. Compare the digits from left to right 3. When the digits do not match the number with the bigger digit is greater, if they are the same the numbers are equal. 4. Write the correct symbol, or = Millions Thousands Ones Hundreds TensOnes, Hundred s TensOnes, Hundreds TensOnes,,,, How did we know?

490,654,633 49,654, Line up the numbers on the workmat. (start with the ones place) 2. Compare the digits from left to right 3. When the digits do not match the number with the bigger digit is greater, if they are the same the numbers are equal. 4. Write the correct symbol, or = Millions Thousands Ones Hundreds TensOnes, Hundred s TensOnes, Hundreds TensOnes,,,, Ho did I know one was greater?

46,871, ,867, Line up the numbers on the workmat. (start with the ones place) 2. Compare the digits from left to right 3. When the digits do not match the number with the bigger digit is greater, if they are the same the numbers are equal. 4. Write the correct symbol, or = Millions Thousands Ones Hundreds TensOnes, Hundred s TensOnes, Hundreds TensOnes,,,, What did we do to compare numbers?

754,981, ,985, Line up the numbers on the workmat. (start with the ones place) 2. Compare the digits from left to right. 3. When the digits do not match the number with the bigger digit is greater, if they are the same the numbers are equal. 4. Write the correct symbol, or = Millions Thousands Ones Hundreds TensOnes, Hundred s TensOnes, Hundreds TensOnes,,,, What did we do to compare numbers?

348,874, ,874, Line up the numbers on the workmat. (start with the ones place) 2. Compare the digits from left to right. 3. When the digits do not match the number with the bigger digit is greater, if they are the same the numbers are equal. 4. Write the correct symbol, or = Millions Thousands Ones Hundreds TensOnes, Hundred s TensOnes, Hundreds TensOnes,,,, What did I do to compare numbers?

What is it called when we find out which number is greater, lesser, or if they are equal? 434,900, ,569 5,640,569 72,890,450 72,745,982

What is something important you learned today about comparing numbers?

Independent Practice Page 29 numbers