Adding & Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a dot (decimal point) separating the whole number from the fractional part.

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 sum directly below the other decimal points.

Tags

CCSS.5.NBT.B.7

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 difference directly below the other decimal points.

Tags

CCSS.5.NBT.B.7

Front

What is the value of 0.9 - 0.565?

Back

0.335

Tags

CCSS.5.NBT.B.7

Front

What is the sum of 62.3 and 9.4?

Back

71.7

Tags

CCSS.6.NS.B.3

Front

What is the result of 96.013 - 4.172?

Back

91.841

Tags

CCSS.6.NS.B.3

Front

What is 0.78 + 0.37?

Back

1.15

Tags

CCSS.5.NBT.B.7

Front

What is the sum of 16.56 and 19.3?

Back

35.86

Tags

CCSS.6.NS.B.3

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.

Tags

CCSS.5.NBT.B.7

Front

What is a common mistake when adding decimals?

Back

A common mistake is not aligning the decimal points, which can lead to incorrect sums.

Tags

CCSS.6.NS.B.3