Mixed Operation Decimal Word Problems

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 whole numbers, placing the decimal point in the sum 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

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 more than one mathematical operation, such as addition, subtraction, multiplication, or division, to solve a problem.

Front

How do you solve a word problem involving decimals?

Back

Read the problem carefully, identify the operations needed, convert the words into numbers and equations, and then solve step by step.

Front

What is the importance of estimating in decimal operations?

Back

Estimating helps to check the reasonableness of an answer and can simplify calculations by rounding numbers to easier values.

Front

What is the formula to find the total weight of multiple items?

Back

Total Weight = Number of Items × Weight of Each Item. For example, if 4 items weigh 2.5 lbs each, the total weight is 4 × 2.5 = 10 lbs.

Front

How do you find the difference between two decimal numbers?

Back

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

Front

What is the significance of the decimal point in a number?

Back

The decimal point separates the whole number part from the fractional part, indicating the value of each digit based on its position.