Operations with Decimals

Front

What is the result of multiplying 45.1 by 7?

Back

The result is 315.7.

Front

If a video game system costs $345.67 and goes on sale for $299.99, how much money is saved by buying it on sale?

Back

The savings would be $45.68.

Front

What is the result of subtracting 4.156 from 16.3?

Back

The result is 12.144.

Front

What is the sum of $54.99 and $4.65?

Back

The sum is $59.64.

Front

What is the result of subtracting 8.9 from 14?

Back

The result is 5.1.

Front

Define decimal numbers.

Back

Decimal numbers are numbers that have a whole number part and a fractional part, separated by a decimal point.

Front

What is the importance of place value in decimal operations?

Back

Place value determines the value of each digit in a decimal number, which is crucial for accurate calculations.

Front

How do you round a decimal number to the nearest whole number?

Back

To round a decimal to the nearest whole number, look at the digit in the tenths place: if it's 5 or greater, round up; if it's less than 5, round down.

Front

What is the process for adding decimal numbers?

Back

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

Front

What is the process for subtracting decimal numbers?

Back

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