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 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 sum of 2.5 and 3.7?

Back

6.2

Tags

CCSS.6.NS.B.3

Front

What is the difference between 5.5 and 2.2?

Back

3.3

Tags

CCSS.5.NBT.B.7

Front

What is 0.75 + 0.25?

Back

1.0

Tags

CCSS.5.NBT.B.7

Front

What is 4.2 - 1.8?

Back

2.4

Tags

CCSS.5.NBT.B.7

Front

How do you round decimals?

Back

To round decimals, look at the digit to the right of the place value you are rounding to. If it's 5 or more, round up; if it's less than 5, round down.

Tags

CCSS.5.NBT.A.4

Front

What is the value of 3.14 + 2.86?

Back

6.0

Tags

CCSS.5.NBT.B.7

Front

What is the value of 10.5 - 4.75?

Back

5.75

Tags

CCSS.5.NBT.B.7