Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal representation of 5/10.

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

What is the sum of 32.15 and 24.15?

Back

56.30

Tags

CCSS.6.NS.B.3

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 difference between 7.05 and 4.6?

Back

2.45

Tags

CCSS.6.NS.B.3

Front

What is the world record in the long jump?

Back

The world record in the long jump is 39.3 feet.

Front

If Tamara jumps 17.6 feet, how do you find the difference from the world record?

Back

Subtract Tamara's jump from the world record: 39.3 - 17.6 = 21.7 feet.

Tags

CCSS.5.NBT.B.7

Front

What is the result of 94 - 4.8?

Back

89.2

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 the value of 0.75 + 0.25?

Back

1.00

Tags

CCSS.5.NBT.B.7