Decimal Operations Word Problems

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal that represents 5/10.

Front

How do you divide a decimal by a whole number?

Back

To divide a decimal by a whole number, move the decimal point in the dividend (the number being divided) to the right as many places as needed to make it a whole number, then divide as usual.

Front

What is the formula for finding the area of a rectangle?

Back

The area of a rectangle is found by multiplying its length by its width. Area = Length × Width.

Front

How do you find the average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken. Average Speed = Total Distance / Total Time.

Front

What is subtraction of decimals?

Back

Subtraction of decimals involves aligning the decimal points and subtracting as you would with whole numbers, then placing the decimal point in the answer.

Front

How do you add decimals?

Back

To add decimals, align the decimal points and add as you would with whole numbers, then place the decimal point in the sum.

Front

What is the importance of rounding decimals?

Back

Rounding decimals is important for simplifying numbers to make them easier to work with, especially in estimation and when precision is not critical.

Front

If a wire is 9.6 meters long and cut into 4 equal pieces, how long is each piece?

Back

Each piece is 2.4 meters long.

Front

If a car travels 120.5 kilometers in 1.5 hours, what is the average speed?

Back

The average speed is 80.33 km/h.

Front

What is the difference between two decimal numbers?

Back

The difference is found by subtracting the smaller number from the larger number.