Break it down into expanded form showing ten thousands, thousands, hundreds, tens, and ones.
Standard form: Writing a number in its usual way (e.g., 56,347)
Expanded form: Breaking apart by place value (e.g., 50000 + 6000 + 300 + 40 + 7)
- Look at each digit in the number
- Identify the place value of each digit (ten thousands, thousands, hundreds, tens, ones)
- Count how many ten thousands, thousands, hundreds, tens, and ones
- Write the standard form
In 56,347, we have digit 5, digit 6, digit 3, digit 4, and digit 7
Digit 5 is in the TEN THOUSANDS place, Digit 6 is in the THOUSANDS place, Digit 3 is in the HUNDREDS place, Digit 4 is in the TENS place, Digit 7 is in the ONES place
5 ten thousands = 50000, 6 thousands = 6000, 3 hundreds = 300, 4 tens = 40, 7 ones = 7
56,347 is already in standard form
56,347 in standard form is fifty-six thousand three hundred forty-seven
It has 5 ten thousands, 6 thousands, 3 hundreds, 4 tens, and 7 ones
• Place value: Each position has a different value
• Standard form: The normal way we write numbers
• Ten thousands, thousands, hundreds, tens, ones: Count groups of 10000, 1000, 100, 10, and 1
Show the process step by step.
Expanded form: 40000 + 5000 + 200 + 60 + 8 (showing ten thousands, thousands, hundreds, tens, and ones separately)
Standard form: 45,268 (the combined number)
40000 = 4 ten thousands, 5000 = 5 thousands, 200 = 2 hundreds, 60 = 6 tens, 8 = 8 ones
4 ten thousands + 5 thousands + 2 hundreds + 6 tens + 8 ones = 45,268
45,268 is the standard form
40000 + 5000 + 200 + 60 + 8 = 45,268 in standard form
45,268 has 4 ten thousands, 5 thousands, 2 hundreds, 6 tens, and 8 ones
• Combining place values: Add ten thousands, thousands, hundreds, tens, and ones together
• Standard form: Write the total number
• Addition: 40000 + 5000 + 200 + 60 + 8 = 45,268
Write in standard form.
Word problems: Convert words to mathematical expressions
Standard form: The final numerical answer
Sarah has 3 ten thousands, 7 thousands, 4 hundreds, 2 tens, and 9 ones
3 ten thousands = 3 × 10000 = 30000
7 thousands = 7 × 1000 = 7000
4 hundreds = 4 × 100 = 400
2 tens = 2 × 10 = 20
9 ones = 9 × 1 = 9
30000 + 7000 + 400 + 20 + 9 = 37,429
The standard form is 37,429
Sarah has 37,429 in standard form
37,429 has 3 ten thousands, 7 thousands, 4 hundreds, 2 tens, and 9 ones
• Word to number: Convert "3 ten thousands" to 30000
• Place value: 3 ten thousands = 30000, 7 thousands = 7000, 4 hundreds = 400, 2 tens = 20, 9 ones = 9
• Standard form: 30000 + 7000 + 400 + 20 + 9 = 37,429
Place Value: The value of a digit based on its position
Standard Form: Writing numbers in their usual way (e.g., 56,347)
Expanded Form: Showing the value of each digit (e.g., 50000 + 6000 + 300 + 40 + 7)
- Identify digits: Look at each digit in the number
- Find place values: Determine if digit is in ten thousands, thousands, hundreds, tens, or ones place
- Calculate values: Multiply by place value (10000 for ten thousands, 1000 for thousands, 100 for hundreds, 10 for tens, 1 for ones)
- Combine: Add to get the standard form
• Ten Thousands digit × 10000 = ten thousands value
• Thousands digit × 1000 = thousands value
• Hundreds digit × 100 = hundreds value
• Tens digit × 10 = tens value
• Ones digit × 1 = ones value
• Standard form = ten thousands value + thousands value + hundreds value + tens value + ones value
Large Numbers: Understanding place values beyond ten thousands (hundred thousands, millions)
Decimal Places: Extending place value concept to decimals (tenths, hundredths, thousandths)
Scientific Notation: Representing large numbers in standard form (e.g., 5.6347 × 10⁴)
Comparing Numbers: Using place value to compare and order numbers
a) 8 ten thousands + 2 thousands + 5 hundreds + 3 tens + 6 ones
b) 70000 + 4000 + 0 + 90 + 1
c) 90000 + 0 + 0 + 0 + 8
Standard form conversion: Combining ten thousands, thousands, hundreds, tens, and ones into one number
8 ten thousands = 8 × 10000 = 80000
2 thousands = 2 × 1000 = 2000
5 hundreds = 5 × 100 = 500
3 tens = 3 × 10 = 30
6 ones = 6 × 1 = 6
80000 + 2000 + 500 + 30 + 6 = 82,536
This is expanded form: 70000 + 4000 + 0 + 90 + 1 = 74,091
74,091 has 7 ten thousands, 4 thousands, 0 hundreds, 9 tens, and 1 one
This is expanded form: 90000 + 0 + 0 + 0 + 8 = 90,008
90,008 has 9 ten thousands, 0 thousands, 0 hundreds, 0 tens, and 8 ones
a) 8 ten thousands + 2 thousands + 5 hundreds + 3 tens + 6 ones = 82,536
b) 70000 + 4000 + 0 + 90 + 1 = 74,091
c) 90000 + 0 + 0 + 0 + 8 = 90,008
• Conversion: 8 ten thousands = 80000, 2 thousands = 2000, 5 hundreds = 500, 3 tens = 30, 6 ones = 6
• Addition: 80000 + 2000 + 500 + 30 + 6 = 82,536
• Standard form: Write as single number
Then convert back to standard form to verify.
Expanded form: Breaking apart by place value
Verification: Converting back to check accuracy
8 is in ten thousands place, 4 is in thousands place, 7 is in hundreds place, 2 is in tens place, 9 is in ones place
8 ten thousands = 80000, 4 thousands = 4000, 7 hundreds = 700, 2 tens = 20, 9 ones = 9
Expanded form: 80000 + 4000 + 700 + 20 + 9
80000 + 4000 + 700 + 20 + 9 = 84,729
We started with 84,729 and got back 84,729 ✓
84,729 in expanded form is 80000 + 4000 + 700 + 20 + 9
Verification: 80000 + 4000 + 700 + 20 + 9 = 84,729 ✓
• Expanded form: Separate by place value
• Verification: Always check by converting back
• Place value: 8 ten thousands = 80000, 4 thousands = 4000, 7 hundreds = 700, 2 tens = 20, 9 ones = 9
Place Value: The value of a digit based on its position in a number
Standard Form: Writing numbers in their usual way (e.g., 56,347, 82,459, 93,712)
Expanded Form: Showing the value of each digit separately (e.g., 50000 + 6000 + 300 + 40 + 7, 80000 + 2000 + 400 + 50 + 9)
Ten Thousands Place: The fifth digit from the right (represents groups of 10000)
Thousands Place: The fourth digit from the right (represents groups of 1000)
Hundreds Place: The third digit from the right (represents groups of 100)
Tens Place: The second digit from the right (represents groups of 10)
Ones Place: The rightmost digit (represents individual units)
- Identify the number: Look at the given number
- Separate digits: Identify each digit in the number
- Assign place values: Determine if each digit is in ten thousands, thousands, hundreds, tens, or ones place
- Calculate values: Multiply each digit by its place value
- Combine values: Add the place values together
- Write standard form: Present the final number
• Ten Thousands digit × 10000 = ten thousands value
• Thousands digit × 1000 = thousands value
• Hundreds digit × 100 = hundreds value
• Tens digit × 10 = tens value
• Ones digit × 1 = ones value
• Standard form = ten thousands value + thousands value + hundreds value + tens value + ones value
• Expanded form = (ten thousands × 10000) + (thousands × 1000) + (hundreds × 100) + (tens × 10) + (ones × 1)
• Verification: standard form → expanded form → standard form
Large Numbers: Understanding hundred thousands, millions place values
Decimal Place Value: Extending to tenths, hundredths, thousandths
Scientific Notation: Writing numbers like 8.4729 × 10⁴ for 84,729
Comparing Numbers: Using place value to determine greater than/less than relationships
Memorize: Place value positions from right to left: ones, tens, hundreds, thousands, ten thousands, hundred thousands...
Remember: Each place is 10 times the value of the place to its right
Practice: Regularly convert between standard and expanded forms
Verify: Always check your answers by converting back and forth
Visualize: Use drawings or manipulatives to understand place value