Christmas Math

Front

What is a dozen?

Back

A dozen means 12 of something.

Front

How do you calculate the total number of cookies made if you have dozens?

Back

Multiply the number of dozens by 12. For example, 5 dozen cookies = 5 x 12 = 60 cookies.

Front

If you have 40 cookies and give away 4, how many cookies do you have left?

Back

You subtract the number given away from the total: 40 - 4 = 36 cookies.

Front

How do you divide cookies among groups?

Back

You take the total number of cookies and divide it by the number of groups. For example, 36 cookies divided by 3 groups = 12 cookies per group.

Front

What is the perimeter of a square block if each side is 25m long?

Back

The perimeter is the total distance around the block. For a square, it's 4 times the length of one side: 4 x 25m = 100m.

Front

How do you find the total number of bells if each reindeer has a certain number?

Back

Multiply the number of reindeer by the number of bells each has. For example, 12 reindeer with 9 bells each = 12 x 9 = 108 bells.

Front

What is multiplication?

Back

Multiplication is adding a number to itself a certain number of times. For example, 3 x 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

If you have 52 presents and use 7 pieces of tape on each, how do you find the total tape used?

Back

Multiply the number of presents by the tape used per present: 52 x 7 = 364 pieces of tape.

Front

What is subtraction?

Back

Subtraction is taking one number away from another. For example, 10 - 4 = 6.

Front

What is division?

Back

Division is splitting a number into equal parts. For example, 12 divided by 3 means splitting 12 into 3 equal parts of 4.