Reading and writing whole numbers

• In the number 3,452, what is the place value of the digit 5?

  Tens
• What is the name of the chart shown in the image?

  Decimal Place Value Chart
• What is the first box in the grouping of large numbers?

  Trillions
• How does the place value system work in terms of digit positions?

  • Each position increases by 10 times to the left
  • Each position decreases by 10 times to the right
• If a number has a 5 in the hundredths place, what is the value of that digit?

  0.05
• What are the key features of a decimal place value chart?

  • Columns for each place value (ones, tenths, hundredths, etc.)
  • Decimal point separating whole numbers and decimal places
  • Consistent place value progression (powers of 10)
  • Ability to align numbers vertically to compare digits
• What is the ones place in the place value system?

  It represents single blocks.
• How does the decimal place value chart help you compare the size of two decimal numbers?

  It allows you to align the decimal points and compare the digits in each place value column
• What does the hundreds place represent?

  It is like having a big square made of 100 blocks.
• What does the place value system show?

  How much each digit represents
• What is the analogy used to explain the place value system?

  • Building with blocks
  • Ones place: single blocks
  • Tens place: tower of 10 blocks
  • Hundreds place: big square of 100 blocks
• What is the function of the decimal point in the place value system?

  It separates whole numbers from parts of a whole
• How does each place in the place value system function?

  Each place tells how many of each kind of block you have.
• How is the tens place represented in the place value system?

  It is like a tower of 10 blocks stuck together.
• What does each digit in a number represent?

  Its place value showing its worth
• What are the place values from ones to billions?

  • Ones: 1
  • Tens: 10
  • Hundreds: 100
  • Thousands: 1,000
  • Millions: 1,000,000
  • Billions: 1,000,000,000
• What is the place value of the digit 7 in the number 5,789,012?

  Thousands
• How much bigger is each place value compared to the one to its right?

  Each place is ten times bigger
• What does the place value system represent?

  • A secret code for building numbers
  • Each place indicates quantity of blocks
  • Decimal point separates whole and fractional parts
• In the number 3,452, what is the place value of the digit 3?

  Thousands
• What is the function of a decimal point in numbers?

  • Divides the whole number
  • Separates the fractional part
• In the number 3,452, what is the place value of the digit 4?

  Hundreds
• If a number has a 4 in the Thousands place, what is the value of that digit?

  4,000
• In the number 3,452, what is the place value of the digit 2?

  Ones
• What is the purpose of comma groups in reading numbers?

  To separate large numbers for clarity
• How are large numbers read correctly?

  Using comma groups of three digits
• What is the place value of the digit 5 in the number 5,789,012?

  Millions
• How does the place value of a digit change as you move from right to left in a number?

  The place value increases by a factor of 10
• What is the value of the number 458,372,490,000,000 in trillions?

  458 trillion
• What is the value of the number 458,372,490,000,000 in billions?

  372 billion
• What is the value of the number 458,372,490,000,000 in thousands?

  490 thousand
• What is the second box in the grouping of large numbers?

  Billions
• What is the fourth box in the grouping of large numbers?

  Thousands
• What are the different place value positions shown in the image?

  • Trillions
  • Billions
  • Millions
  • Thousands
  • Ones
• What do commas help separate in large numbers?

  Different groups of values
• Why do we use boxes to represent large numbers?

  To make big numbers easier to read
• What is the significance of using commas in large numbers?

  They help separate different value groups
• What are the place values for whole numbers?

  • Ones: 1
  • Tens: 10
  • Hundreds: 100
  • Thousands: 1,000
• What does each box in large numbers represent?

  A special group of values
• How can you use a decimal place value chart to write a decimal number?

  • Identify the place value of each digit
  • Write the digits in the correct place value columns
  • Include the decimal point in the correct location