Add, Subtract, Multiply & Divide Decimals

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.

Front

How do you add decimals?

Back

Align the decimal points and add as you would whole numbers, then place the decimal point in the sum.

Front

What is the rule for multiplying decimals?

Back

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

Front

How do you subtract decimals?

Back

Align the decimal points and subtract as you would whole numbers, then place the decimal point in the difference.

Front

What is the rule for dividing decimals?

Back

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 and divide as usual.

Front

What is 0.73 multiplied by 2.52?

Back

1.8356 (move the decimal 4 places to the left in the product).

Front

If Perry bought 7 ounces of sugar and spilled 4.3 ounces, how much is left?

Back

2.7 ounces.

Front

What is 0.6 multiplied by 0.91?

Back

0.546.

Front

What is 2.07 divided by 0.9?

Back

2.3.

Front

How do you find the total weight of multiple items in decimals?

Back

Add the weights together, aligning the decimal points.