Value of a digit
key notes :
🎆1. Understanding Place Value:
- Place Value Definition: Place value is the value of a digit based on its position in a number.
- Digits: The symbols 0-9 are used to represent numbers.
- Positions: In a number, each digit has a position (ones, tens, hundreds, etc.) that determines its value.
🎈2. Value of a Digit:
- Ones Place: The digit in the ones place represents how many ones are in the number.
- Example: In 342, the digit 2 is in the ones place, so its value is 2.
- Tens Place: The digit in the tens place represents how many tens are in the number.
- Example: In 342, the digit 4 is in the tens place, so its value is 40.
- Hundreds Place: The digit in the hundreds place represents how many hundreds are in the number.
- Example: In 342, the digit 3 is in the hundreds place, so its value is 300.
🥽3. Identifying the Value of a Digit:
- Example 1: In the number 587:
- The digit 5 is in the hundreds place, so its value is 500.
- The digit 8 is in the tens place, so its value is 80.
- The digit 7 is in the ones place, so its value is 7.
- Example 2: In the number 1,236:
- The digit 1 is in the thousands place, so its value is 1,000.
- The digit 2 is in the hundreds place, so its value is 200.
- The digit 3 is in the tens place, so its value is 30.
- The digit 6 is in the ones place, so its value is 6.
🎟4. Expanded Form:
- Writing in Expanded Form: Break down the number to show the value of each digit.
- Example: 763 in expanded form is 700 + 60 + 3.
- Practice: Write various numbers in expanded form to understand the value of each digit.
🎁5. Using a Place Value Chart:
- Place Value Chart: A tool that helps visualize the value of digits in different positions.
- Example: For the number 4,892:
- Thousands: 4 (Value: 4,000)
- Hundreds: 8 (Value: 800)
- Tens: 9 (Value: 90)
- Ones: 2 (Value: 2)
- Example: For the number 4,892:
- Practice: Use a place value chart to identify and write the value of digits in different numbers.
🎋6. Comparing Values of Digits:
- Comparison: Compare the value of digits in different numbers.
- Example: In 735 and 653, the digit 7 in 735 represents a greater value (700) than the digit 6 in 653 (600).
- Practice: Compare digits from different numbers to understand how their value changes with their position.
Learn with an example
🗼 Which number’s underlined digit is worth 2?
62 / 25
Remember the place values:
tens | ones |
Look for a 2 in the ones place. A 2 in the ones place is worth 2.
The underlined digit in this number is a 2 in the ones place:
tens | ones |
2 | 2 |
The underlined digit in 62 is worth 2.
🗼 Which number’s underlined digit is worth 30?
35 / 43
Remember the place values:
tens | ones |
Look for a 3 in the tens place. A 3 in the tens place is worth 30.
The underlined digit in this number is a 3 in the tens place:
tens | ones |
3 | 5 |
The underlined digit in 35 is worth 30.
🗼 Which number’s underlined digit is worth 2?
- 42
- 22
Remember the place values:
tens | ones |
Look for a 2 in the ones place. A 2 in the ones place is worth 2.
The underlined digit in this number is a 2 in the ones place:
tens | ones |
4 | 2 |
The underlined digit in
42 is worth 2.
Let’s practice!