Christmas Math

Front

What is a dozen?

Back

A dozen means 12 of something.

Tags

CCSS.1.NBT.A.1

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.

Tags

CCSS.5.NBT.B.7

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.

Tags

CCSS.2.OA.A.1

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.

Tags

CCSS.3.OA.A.2

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.

Tags

CCSS.4.MD.A.3

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.

Tags

CCSS.3.OA.A.3

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.

Tags

CCSS.3.OA.A.1

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.

Tags

CCSS.3.OA.A.3

Front

What is subtraction?

Back

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

Tags

CCSS.2.NBT.B.7

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.

Tags

CCSS.3.OA.A.2