Adding, subtracting & rounding decimals.

Front

What is the process of adding decimals?

Back

To add decimals, align the numbers by the decimal point and add each column starting from the right, carrying over if necessary.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract each column starting from the right, borrowing if necessary.

Front

What is rounding, and why is it used?

Back

Rounding is the process of adjusting a number to a nearby specified value, often to make calculations easier or to express a number in a simpler form.

Front

How do you round a number to the nearest whole number?

Back

To round to the nearest whole number, look at the digit in the tenths place: if it is 5 or greater, round up; if it is less than 5, round down.

Front

What is the value of 0.5 in cents?

Back

0.5 is equivalent to 50 cents.

Front

How do you convert a whole number to a decimal?

Back

To convert a whole number to a decimal, simply add '.0' to the end of the number.

Front

What is the total cost if you buy items priced at $14.00 and $59.95?

Back

The total cost is $73.95.

Front

If you pay with a $100 bill for a $73.95 purchase, how much change do you receive?

Back

You receive $26.05 in change.

Front

What is the result of rounding 234.439 to the nearest hundredth?

Back

234.44.

Front

How much did Susan spend if she bought a drum set for $79.99 and a keyboard for $54.99?

Back

Susan spent a total of $134.98.