Decimal Operations Review

Front

What is the result of multiplying 6.74 by 2.6?

Back

17.524

Front

How do you find the total length of multiple ribbons measured in centimeters?

Back

Add the lengths of all ribbons together. For example, 10.34 + 12.27 + 11.40 = 34.01 centimeters.

Front

If a store ships 26 birdhouses, each weighing 3.93 pounds, how do you calculate the total weight?

Back

Multiply the number of birdhouses by the weight of each: 26 × 3.93 = 102.18 pounds.

Front

How do you calculate the cost per person when four friends split a $45.84 movie trip?

Back

Divide the total cost by the number of friends: $45.84 ÷ 4 = $11.46.

Front

What is the result of dividing 0.294 by 3?

Back

0.098

Front

What is the general rule for multiplying decimals?

Back

Multiply 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 process for adding decimal numbers?

Back

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

Front

How do you convert a fraction to a decimal?

Back

Divide the numerator by the denominator.

Front

What is the significance of decimal places in multiplication?

Back

The number of decimal places in the product is equal to the sum of the decimal places in the factors.

Front

How do you round a decimal to the nearest hundredth?

Back

Look at the third decimal place; if it's 5 or more, round up the second decimal place by one.