# Division Games and Activities

Division Games...... Before the Worksheets

7's:

Your child should know their 7's (multiplication facts). It is vital that they know these multiplication facts because they will be a huge help in division.

Practice reading multiplication problems and rewrite them into a division problem: 8 x 7 = 56 , 56 / 7 = 8.

There are several strategies for solving any division problems with the divisor of 7:

It is best to explain this by example, Look at the problem: 63/7:

(1). Look at the divisor: By looking at the divisor you know this is a 7 fact.

(2). Skip Count: I might skip count and realize that I have to skip count 9 times to get to 63.

(3). Guess and Check: Since 63 is much greater that 7, I make a guess and start with 7x7 (I know the poem: Seven and seven were doing fine. 7 times 7 is 49). I'm closer so I can add 8 to 49 ( check to see if I'm close) and get 56, now I know it must be 9 ( I'm there). So,63/7=9.

FUN FACT: To find out if a number is divisible by seven, take the last digit, double it, and subtract it from the rest of the number. Check out this example: If you had 203, you would double the last digit (three) to get six, and subtract that from 20 (the remaining amount) to get 14. Since 14 is divisible by seven, 203 is too.

Ideas for division games: A week is 7 days. Ask questions about the calendar. How many weeks are in a month (a 28 day month)? How many weeks until a special event ( birthday, holiday, vacation)?

Division Games...... Before the Worksheet

8's:

Your child should know their 8's (multiplication facts). It is vital that they know these multiplication facts because they will be a huge help in division.

First, practice reading multiplication / division problems and rewrite them into a division problem. So, 3 x 8 = 24 can become 24 / 8 = 3.

There are several strategies for solving any division problems with the divisor of 8:

It is best to explain this by example, Look at the problem: 32 / 4 =:

(1). Look at the divisor: By looking divisor you know this is a 8 fact.

(2). Skip Count: I might skip count and realize that I have to skip count 4 times to get to 32.

(3). Guess and Check : Since 32 is not too far away from 8, I might guess and start with 8x2 or 8+8=16 ( check to see if I am close), I can see I need to go much higher so I add another 8+8=16 ( a total of 4-8's- and see if I am close), then add 16+16 to get 32 ( I'm there). So, 32/8=4.

FUN FACT: This brings us back to the old halving trick we used with two and four. Try halving four times. For example, 64/ 8. Half of 64 is 32 and half of 32 is 16, then half of 16 is 8. Therefore 64 8 = 8.

Division Games...... Before the Worksheet

9's:

Your child should know their 9's (multiplication facts). It is vital that they know these multiplication facts because they will be a huge help in division.

Practice reading multiplication problems and rewrite them into a division problem: 8 x 9 = 72 , 72 / 9 = 8.

There are several strategies for solving any division problems with the divisor of 9:

It is best to explain this by example, Look at the problem: 72 / 9:

(1). Look at the divisor: By looking divisor you know this is a 9 fact.

(2). Skip Count: I might skip count and realize that I have to skip count 9 times to get to 63.

(3). Guess and Check: 9's are great because you can use the magic finger trick (see above) and in seconds I see that 9x6=54. So 54/9=6

FUN FACT: Use the same trick we used to see if a number is divisible by three - for any power of three (3,6,9,12, etc.).