Decimal operations

Front

What is the result of adding two decimal numbers, 2.39 and 4.37?

Back

The result is 6.76.

Front

How do you multiply two decimal numbers, such as 0.65 and 1.2?

Back

Multiply as whole numbers (65 and 12), then place the decimal point in the product based on the total number of decimal places in the factors.

Front

What is the result of subtracting 3.47 from 7.9?

Back

The result is 4.43.

Front

How do you add decimal numbers, for example, 55.78 and 4.6?

Back

Align the decimal points and add as you would with whole numbers, carrying over as necessary.

Front

If a steak weighs 1.4 pounds and costs $4.50 per pound, how do you calculate the total cost?

Back

Multiply the weight (1.4) by the price per pound (4.50) to get the total cost of $6.30.

Front

What is the importance of aligning decimal points when performing addition or subtraction?

Back

Aligning decimal points ensures that each digit is in the correct place value, which is crucial for accurate calculations.

Front

What is the process 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 in the product accordingly.

Front

What is the result of adding 0.65 and 1.2?

Back

The result is 1.85.

Front

How do you convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal over 1 and multiply the numerator and denominator by 10 for each digit after the decimal point.

Front

What is the result of subtracting 4.6 from 55.78?

Back

The result is 51.18.