Multiplication Facts

4th grade math requires your child should know:

Represent multiplication as an array (example: a square or rectangle 3 squares high and 5 squares wide is 3x5 =15).

Skip count forwards and backwards by 2,3,4,5,10,100, 1000.

Know multiplication tables by heart 1-12:

I have many requests for a structured but fun multiplication workbook. Here it is..... 5 Steps to Multiplication Mastery!

Kids who know their math facts learn to love math and have higher self esteem in school.

Know how to multiply powers of ten: 10, 100, 1000. (example: 1000 X 54 = 5400)

Regularly use fact families to figure out multiplication equations. (example: 4x2 =8, 2x4 =8, 8/4 =2, 8/2 =4)

Make their own multiplication story problems and write the matching equations. (example: 5 buses each bus has 15 kids per bus, how many kids? 15x5 =75)

Dear Parent,

Math concepts build on top of each other. If in 4th grade math your child has trouble understanding a basic concept like addition or subtraction, she will struggle even more with multiplication facts and division. So, it may be necessary to go back and brush up on addition and subtraction, which is located in 2nd grade addition and 2nd grade subtraction.

Two important words for you to know in 4th grade math and understand are: **Factor** and**Multiple**. A factor is like taking a number apart. It means to express a number as the product of its factors. In the problem: 5x3=15, 5 and 3 are factors of 15. A multiple of a number is the product of that number and any other whole number. Zero is a multiple of every number. The multiples of 3: 3,6,9,12,15,18,21,etc. Being able to point out or discuss what numbers are multiples and what numbers are factors goes along way.

For example, on Valentines day my kids made candy arrows and were placing 2 arrows in each bag to give to their classmates. We wanted to be sure we had enough candy to make arrows so we multiplied 2x25(kids in class)=50. I pointed out that 2 and 25 are factors of 50. Another example is playing hide and seek or another counting game and counting by multiples ...instead of 1,2,3,4, you can say 4,8,12,16,20,24.

Yours Truly,

The Crazy Math Mom

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