Key Terms
What is the value of a digit in a numeral based on its position; for example, the 7 in 274 has a value of 7 tens, or 70, and the 7 in 12.734 has a value of 7 tenths?
place value
What position in the place-value chart is the 6 in the number 170.642?
tenths
The denominator is the number above the bar in a fraction, which tells the number of equal parts that the fraction describes.
False, it is the numerator
How do you say the number 831.23 in written form?
eight hundred thirty-one, and twenty-three hundredths
What is 1000 + 600 + 80 + 7 + 0.4 + 0.03 in standard form?
1 687.43
What is a number that extends to the right of the whole number by one decimal place (for example, 0.5, 3.7)?
decimal tenth
What position in the place-value chart is the 3 in the number 3 852 710.649?
millions
A digit in the tenths position in the place-value chart will become smaller if it is divided by 10.
True
How do you say the number 123 456.7 in written form?
one hundred twenty-three thousand, four hundred fifty-six, and seven tenths
What is 51 672.8 in expanded form?
50 000 + 1000 + 600 + 70 + 2 + 0.8
What is a number that extends to the right of the whole number by two decimal places (for example, 0.56, 3.74)?
decimal hundredth
What position in the place-value chart is the 8 in the number 3 852 710.4?
hundred thousands
A decimal number is always a representation for a number less than 1.
False. A decimal number is a representation for a number less than 1 or a number between whole numbers.
How do you say the number 203 654.899 in written form?
two hundred three thousand, six hundred fifty-four, and eight hundred ninety-nine thousandths
What is 500 000 + 40 000 + 1000 + 600 + 7 + 0.8 + 0.03 + 0.002 in standard form?
541 607.832
What is a number that extends to the right of the whole number by three decimal places (for example, 0.567, 3.742)?
decimal thousandth
What position in the place-value chart is the 7 in the number 410.976?
hundredths
3/8 (three eights) is equivalent to 0.375
True. 1/8 is 0.125, so three groups of 0.125 is 0.375
How do you say the number 800 006.004 in written form?
eight hundred thousand, six, and four thousandths
What is 748 007.003 is in expanded form?
700 000 + 40 000 + 8000 + 7 + 0.003
What is a unit of measurement for capacity that is about a teaspoon?
millilitre (mL)
What position in the place-value chart is the 8 in the number 9 652.718?
thousandths
There are 100 mL in 1 L
False, there are 1 000 mL in 1 L
How do you say the number 9 203 405.75 in written form?
nine million, two hundred three thousand, four hundred five, and seventy-five hundredths
What is 5 000 000 + 400 000 + 60 000 + 1000 + 900 + 3 + 0.02 + 0.007 in standard form?
5 461 903.027