Decimal Review NBT.7

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 3.14 is a decimal.

Front

How do you add decimals?

Back

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

Front

What is the value of the digit in the tenths place in the decimal 4.56?

Back

The value of the digit in the tenths place in 4.56 is 5, which represents 5 tenths or 0.5.

Front

How do you subtract decimals?

Back

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

Front

What is the process to 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 process to divide decimals?

Back

To divide decimals, move the decimal point in the divisor to make it a whole number, then move the decimal point in the dividend the same number of places. Divide as you would with whole numbers.

Front

If Justin earns $42.38 each day, how much does he earn in 6 days?

Back

$254.28

Front

If Susan has $22.87 and spends $2.76 and $1.79, how much does she have left?

Back

$17.43

Front

What is the total earnings of Karen if she earned $254.63 last month and $328.25 this month?

Back

$582.88

Front

How much more did Sasha earn last month ($874.38) than this month ($547)?

Back

$327.38