Adding And Subtracting Decimals 6th Grade

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 3.14 is a decimal.

Front

How do you add decimals?

Back

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

Front

How do you subtract decimals?

Back

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

Front

What is the 'ghost decimal'?

Back

The 'ghost decimal' refers to the invisible decimal point that exists at the end of whole numbers. For example, in the number 24, the ghost decimal is behind the 4, making it 24.0.

Front

If Nash earns $12 per week for 3 weeks, how much does he earn in total?

Back

Nash earns a total of $36.00 (12 x 3 = 36).

Front

If Nash spends $12.48 after earning $36.00, how much does he have left?

Back

Nash has $23.52 left (36 - 12.48 = 23.52).

Front

Pam had $135.62 and deposited $58.90. How do you find her new balance?

Back

Add the deposit to her original amount: 135.62 + 58.90 = 194.52.

Front

What is the total cost if Lia buys popcorn and a slushy for $8.50 and James buys a slushy and nachos for $12.00?

Back

The total cost is $26.50 (8.50 + 12.00 = 26.50).

Front

If Jeff had $58.90 and withdrew $25.00, how do you find out how much he has left?

Back

Subtract the amount withdrawn from his original balance: 58.90 - 25.00 = 33.90.

Front

What is the importance of aligning decimal points when adding or subtracting?

Back

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