Add, Subtract, Multiply, & Divide Decimals

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part from the fractional part.

Tags

CCSS.4.NF.C.6

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

How do you multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers. Then, count the total number of decimal places in both numbers and place the decimal point in the product accordingly.

Tags

CCSS.6.NS.B.3

Front

How do you divide decimals?

Back

To divide decimals, move the decimal point in the divisor to the right until it is a whole number. Move the decimal point in the dividend the same number of places and then divide as you would with whole numbers.

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

Front

What is the value of 0.4 + 0.9?

Back

0.4 + 0.9 = 1.3

Tags

CCSS.5.NBT.B.7

Front

What is the value of 5.32 - 2.4?

Back

5.32 - 2.4 = 2.92

Tags

CCSS.5.NBT.B.7

Front

What is the value of 0.4 x 0.9?

Back

0.4 x 0.9 = 0.36

Tags

CCSS.6.NS.B.3

Front

What is the value of 4.89 x 4?

Back

4.89 x 4 = 19.56

Tags

CCSS.6.NS.B.3

Front

What is the total cost of 16 uniforms at $89.23 each?

Back

Total cost = 16 x 89.23 = $1427.68

Tags

CCSS.7.EE.B.3