5.NBT.7 Review; Decimal Operations

Front

What is the process of subtracting decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would with whole numbers, ensuring to place the decimal point in the answer directly below the decimal points of the numbers being subtracted.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would with whole numbers, placing the decimal point in the answer directly below the decimal points of the numbers being added.

Front

What is the result of 6.85 - 6.04?

Back

0.81

Front

What is the sum of 5.5 and 9.5?

Back

15.0 or 15.

Front

How do you divide decimals?

Back

To divide decimals, move the decimal point in the divisor to the right until it is a whole number, then move the decimal point in the dividend the same number of places to the right. Perform the division as with whole numbers.

Front

What is 0.4 divided by 5?

Back

0.08.

Front

What is the sum of 879.06 and 242.25?

Back

1121.31.

Front

How do you estimate the sum of decimals?

Back

To estimate the sum, round each decimal to the nearest whole number and then add the rounded numbers.

Front

What is the estimated sum of 4.9, 8.13, and 1.91 when rounded to the nearest whole number?

Back

15.

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.