Multi-digit Operations With Decimals

Front

What is the process for rounding a decimal to the nearest tenth?

Back

To round a decimal to the nearest tenth, look at the hundredths place. If it is 5 or greater, round up the tenths place by one. If it is less than 5, keep the tenths place the same.

Front

How do you perform subtraction with decimals?

Back

To subtract decimals, align the numbers by the decimal point, subtract as you would with whole numbers, and place the decimal point in the answer directly below the other decimal points.

Front

What is the sum of 66 and 8.84?

Back

The sum of 66 and 8.84 is 74.84.

Front

How do you calculate the total distance a car can travel on a full tank of gas?

Back

To calculate the total distance, multiply the miles per gallon by the number of gallons the tank can hold.

Front

What is the combined weight of Twin A and Twin B if Twin A weighs 7.6 lbs and Twin B weighs 7.13 lbs?

Back

The combined weight is 14.73 lbs.

Front

What does it mean to multiply a population figure by a factor?

Back

Multiplying a population figure by a factor indicates how many times larger one population is compared to another.

Front

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

Back

To round to the nearest whole number, look at the first decimal place. If it is 5 or greater, round up. If it is less than 5, round down.

Front

What is the importance of aligning decimal points when performing operations?

Back

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

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

What is the difference between addition and subtraction of decimals?

Back

Addition combines values to find a total, while subtraction finds the difference between values.