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 that represents 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 0.1 in fraction form?

Back

0.1 in fraction form is 1/10.

Tags

CCSS.4.NF.C.6

Front

What is the value of 0.25 in fraction form?

Back

0.25 in fraction form is 25/100 or 1/4.

Front

What is the sum of 0.5 and 0.3?

Back

The sum of 0.5 and 0.3 is 0.8.

Tags

CCSS.5.NBT.B.7

Front

What is the difference between 1.5 and 0.7?

Back

The difference between 1.5 and 0.7 is 0.8.

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 result of 2.5 + 3.1?

Back

The result of 2.5 + 3.1 is 5.6.

Tags

CCSS.5.NBT.B.7

Front

What is the result of 5.75 - 2.25?

Back

The result of 5.75 - 2.25 is 3.50.

Tags

CCSS.5.NBT.B.7