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

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 0.7 + 0.3?

Back

0.7 + 0.3 = 1.0

Tags

CCSS.5.NBT.B.7

Front

What is the value of 5.5 - 2.2?

Back

5.5 - 2.2 = 3.3

Tags

CCSS.5.NBT.B.7

Front

If you have $10.50 and spend $2.75, how much do you have left?

Back

$10.50 - $2.75 = $7.75

Tags

CCSS.6.NS.B.3

Front

What is the sum of 1.25 and 3.75?

Back

1.25 + 3.75 = 5.00

Tags

CCSS.5.NBT.B.7

Front

What is the difference between 8.9 and 4.5?

Back

8.9 - 4.5 = 4.4

Tags

CCSS.5.NBT.B.7

Front

How do you round 3.67 to the nearest whole number?

Back

3.67 rounded to the nearest whole number is 4.

Tags

CCSS.5.NBT.A.4

Front

What is the value of 12.5 + 7.3?

Back

12.5 + 7.3 = 19.8

Tags

CCSS.6.NS.B.3