Adding and subtracting decimals

Front

What is the process of adding decimals?

Back

To add decimals, align the numbers by their decimal points and add each column starting from the right, carrying over if necessary.

Front

What is the process of subtracting decimals?

Back

To subtract decimals, align the numbers by their decimal points and subtract each column starting from the right, borrowing if necessary.

Front

How do you convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal over its place value (e.g., 0.75 = 75/100) and simplify if possible.

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 addition or subtraction.

Front

What is the value of 0.1 in fraction form?

Back

0.1 is equal to 1/10.

Front

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

Back

To round a decimal to the nearest whole number, look at the digit to the right of the decimal point. If it's 5 or greater, round up; if it's less than 5, round down.

Front

What is the sum of 8.30 and 1.8?

Back

The sum of 8.30 and 1.8 is 10.1.

Front

If Kelly has $20 and spends $2.15 and $6.58, how do you calculate her remaining balance?

Back

Subtract the total spent ($2.15 + $6.58 = $8.73) from $20. So, $20 - $8.73 = $11.27.

Front

What is the difference between 6.95 lbs and 1.75 lbs?

Back

The difference is 6.95 lbs - 1.75 lbs = 5.2 lbs.

Front

How do you find the total growth over two years if Paige grew 4.62 cm and 7.7 cm?

Back

Add the two growth amounts: 4.62 cm + 7.7 cm = 12.32 cm.