expanded notation

Front

What is expanded notation?

Back

Expanded notation is a way of writing numbers to show the value of each digit. For example, the number 345 can be expressed in expanded notation as 300 + 40 + 5.

Front

How do you convert a decimal to standard form?

Back

To convert a decimal to standard form, you write the number as a whole number multiplied by a power of ten. For example, 0.084 can be written as 8.4 x 10^-2.

Front

What is the value of the digit 3 in the number 75.431?

Back

In the number 75.431, the digit 3 is in the tenths place, which means it has a value of 0.3.

Front

How do you express a mixed number in decimal form?

Back

To express a mixed number in decimal form, convert the fractional part to a decimal and add it to the whole number. For example, 2 1/4 = 2 + 0.25 = 2.25.

Front

What is the value of the digit 8 in the number 7.084?

Back

In the number 7.084, the digit 8 is in the hundredths place, which means it has a value of 0.08.

Front

How do you determine the value of a digit in a decimal number?

Back

To determine the value of a digit in a decimal number, identify its place value. For example, in 0.456, the digit 5 is in the tenths place, so its value is 0.5.

Front

What is the standard form of the number represented by six and eighty-four thousandths?

Back

The standard form of the number represented by six and eighty-four thousandths is 6.084.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

What is the value of 8 dimes in dollars?

Back

8 dimes is equivalent to $0.80, since each dime is worth $0.10.

Front

What is the value of 3 pennies in dollars?

Back

3 pennies is equivalent to $0.03, since each penny is worth $0.01.