Decimals Review

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a dot (decimal point) separating the whole number from the fractional part.

Front

What does the digit in the thousandths place represent?

Back

The digit in the thousandths place represents the value of that digit divided by 1,000.

Front

How do you multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both numbers and place the decimal point in the product accordingly.

Front

What is the result of 0.4 x 0.3?

Back

0.12

Front

What is the result of 2 x 0.04?

Back

0.08

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 result of 0.37 + 0.1?

Back

0.47

Front

How do you round a decimal to the nearest tenth?

Back

To round a decimal to the nearest tenth, look at the hundredths place. If it is 5 or greater, round up; if it is less than 5, round down.

Front

What is the result of rounding 23.542 to the nearest tenth?

Back

23.5

Front

What is the place value of 7 in the number 78.6573?

Back

The place value of 7 in 78.6573 is the thousandths place.