Reading and writing whole numbers

• What does place value indicate in a whole number?

  It indicates the position and value of digits
• How do you identify the place value of the digit 4 in the number 4,235?

  It is in the thousands place
• How are place values arranged in a whole number?

  From right to left: units, tens, hundreds
• How do you express the number 4,235 in expanded form?

  4,000 + 200 + 30 + 5
• What are the steps to read a whole number in standard form?

  1. Start from the leftmost digit
  2. Identify its place value (units, tens, hundreds, etc.)
  3. Read each digit based on its place value
  4. Say the entire number from left to right
• In the number 345, what is the place value of the digit 5?

  Units place, worth 5
• What does it mean if one number has more digits than another?

  It is greater than the other number
• What is the expanded form of the number 4,235?

  4,000 + 200 + 30 + 5
• What is the place value of the digit 5 in the number 4,235?

  Units
• What is the first step to compare whole numbers?

  Look at their digits starting from the left
• What does writing whole numbers in standard form mean?

  Using digits without spaces or commas
• How should the number 15,478 be formatted in standard form?

  15,478
• What is the rounded result of 347 to the tens place?

  350
• In the comparison of 345 and 423, which digit determines that 423 is greater?


  The digit 4 in 423
• How can the number 345 be expressed in expanded form?

  • 300 + 40 + 5
• What are the common place values in rounding whole numbers?

  • Units (ones)
  • Tens (tens)
  • Hundreds (hundreds)
  • Thousands (thousands)
• What is the place value of the digit 2 in the number 4,235?

  Hundreds
• What happens if the right digit is 7 when rounding 347 to the tens place?

  Round up the 4 to 5
• What does the expanded form of a number represent?

  It shows the value of each digit
• How does a number line help with whole numbers?

  • Visualizes the order of numbers
  • Shows the relative position of numbers
• What is the place value of the digit 3 in the number 4,235?

  Tens
• How would you write 200 plus 30 plus 7 in standard form?

  237
• How can a number line assist in rounding?

  It visualizes the rounding process
• What should you do if the leftmost digits of two numbers are equal?

  Move to the next place value
• What are the rules for writing whole numbers in standard form?

  • Use digits only
  • No spaces or commas unless necessary
  • Use commas after every three digits for large numbers
• How are the numbers 123, 246, and 358 ordered?

  From least to greatest
• In the number 345, what is the place value of the digit 3?

  Hundreds place, worth 300
• What digit is to the right of the tens place in 347?


  7
• In the number 345, what is the place value of the digit 4?

  Tens place, worth 40
• What is a whole number in standard form?

  Written using digits without spaces or commas
• What does ordering whole numbers involve?

  • Arranging numbers from least to greatest
  • Arranging numbers from greatest to least
• What does the number line [340, 345, 347, 350] illustrate about rounding?

  It shows 347 rounding up to 350
• What digit is in the tens place of the number 347?

  4
• Why is rounding whole numbers useful?

  It simplifies numbers for easier use
• What are the steps to round a whole number to a specific place value?

  1. Look at the digit in that place.
  2. Consider the digit to the right.
  3. If the right digit is 5 or more, round up.
  4. If the right digit is less than 5, keep it.
• How do you compare whole numbers with the same number of digits?

  Compare the leftmost digits
• When should commas be used in standard form?

  For large numbers needing separators