4.4A - Add and subtract whole numbers and decimals

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another.

Front

What is a whole number?

Back

A whole number is a number without fractions; it is a non-negative integer (0, 1, 2, 3, ...).

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten, represented with a decimal point.

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.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference.

Front

What is the sum of 4.2 and 7.98?

Back

The sum of 4.2 and 7.98 is 12.18.

Front

If James earns $22.50, $14.75, and $8.50, how much does he earn in total?

Back

James earns a total of $45.75.

Front

If Justin bought 6.95 lbs of jelly beans and 1.75 lbs were cherry flavor, how many pounds were lime flavor?

Back

The lime flavor jelly beans weigh 5.2 lbs.

Front

How do you find the difference between two numbers?

Back

To find the difference, subtract the smaller number from the larger number.