Lunar New Year Math Challenge

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

What is subtraction?

Back

Subtraction is a mathematical operation that represents the operation of removing objects from a collection. For example, if you have 20 rice cakes and give away 5, you subtract 5 from 20 to find out how many you have left: 20 - 5 = 15.

Front

What is division?

Back

Division is a mathematical operation that splits a number into equal parts. For example, if you have 12 dumplings and want to share them equally among 4 friends, you divide 12 by 4: 12 ÷ 4 = 3.

Front

What is addition?

Back

Addition is a mathematical operation that combines two or more numbers to get a total. For example, if you have 5 red envelopes and receive 3 more, you add them together: 5 + 3 = 8.

Front

How do you calculate the total number of performances if a team performs 3 times a day for 4 days?

Back

You multiply the number of performances per day by the number of days: 3 x 4 = 12 performances.

Front

If Jenny made 20 rice cakes and gave away 5, how do you find out how many she has left?

Back

You subtract the number of rice cakes given away from the total: 20 - 5 = 15 rice cakes left.

Front

How do you find out how many dumplings each friend gets if Li made 12 dumplings for 4 friends?

Back

You divide the total number of dumplings by the number of friends: 12 ÷ 4 = 3 dumplings per friend.

Front

How do you calculate the total number of performers if there are 9 floats with 4 performers each?

Back

You multiply the number of floats by the number of performers per float: 9 x 4 = 36 performers.

Front

If Mei received 5 red envelopes with 3 dollars each, how do you find the total amount of money?

Back

You multiply the number of envelopes by the amount in each envelope: 5 x 3 = 15 dollars.

Front

What is the formula for finding the total when adding?

Back

The formula for addition is: Total = Number1 + Number2.