Mixed Operation Decimal Word Problems

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

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 process for multiplying decimals?

Back

To multiply decimals, 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 divide decimals?

Back

To divide decimals, move the decimal point in the divisor to the right until it is a whole number, then move the decimal point in the dividend the same number of places and divide as usual.

Front

What is a mixed operation problem?

Back

A mixed operation problem involves using more than one mathematical operation (addition, subtraction, multiplication, division) to solve a problem.

Front

How do you solve a word problem involving weight?

Back

Identify the weights given, determine the operation needed (addition, subtraction, etc.), and perform the calculation to find the total weight.

Front

If a box weighs 2.81 grams, how much do 3 boxes weigh?

Back

3 boxes weigh 8.43 grams (2.81 grams x 3 = 8.43 grams).

Front

How do you find the number of containers needed for a liquid?

Back

Divide the total volume of liquid by the volume of each container to find the number of containers needed.

Front

If you have 19.8 gallons of juice and each container holds 6.6 gallons, how many containers do you need?

Back

You need 3 containers (19.8 gallons ÷ 6.6 gallons = 3).

Front

What is the formula to find the remaining quantity?

Back

To find the remaining quantity, subtract the known quantity from the total quantity.