Understand Multiplication and Division
Multiplication Facts
Use Multiplication to Divide
Apply Properties
A Little Bit of Everyting.
100
For Thanksgiving, Mrs. Rocque and Mrs. Griewisch are making cupcakes for the third grade party. They will need cupcake liners. The liners come in boxes of 10. If there are 34 students, will 3 boxes of liners be enough to make 34 cupcakes?
No, 3 boxes will make 30 cupcakes which isn't enough for 34 students.
100
This is an array of donuts. What is a multiplication fact that describes this array.
3x4=12
100
How can you check to see if 24 divided by 6 equals 4?
Multiply 4 and 6.
100
What is this property?
3x4=12
4x3=12
Commutative Property of Multiplication
100
Billy uses mental math to solve 6x30. What could he use to help solve this?
6x3=18
18x10=180
200
6x6=?
What 5s fact could help solve this problem?
5x6=30
then add one more group of 6
5x6=30
1x6=6
30+6=36
200
Jerry is skip counting by 9s aloud to the class. What number will he not say?
3
9
17
27
17
200
What is the unknown number?
24
200
A large array is broken up into two smaller arrays. The two smaller arrays are:
4x3
and 4x3
What is the large array?
4x6
200
A box of erasers has 6 pink erasers and costs $3.00. Mrs. Meacham is buying erasers for the whole school. Would $24.00 be enough to buy 300 erasers? If not, how many does this buy?
NO.
$24.00 buys 8 boxes.
8 boxes is 48 erasers.
300
What 5s fact can help solve this problem?
7x8=?
5x8=40
2x8=16
40+46=56
300
9x8=?
72
300
What is the unknown number?
32
300
Is 4 groups of 4 an even total? Why?
Yes, When 2 even numbers are multiplied together, the answer is always even.
300
The piggy bank is filled with only nickels. What amount below could be the total amount in the bank?
$0.32
$0.36
$1.00
$0.99
$1.00
This would be 20 nickels.
400
What division fact could this array represent?
12/2=6
12/6=2
400
6x9=?
54
400
What is the unknown number?
6
400
7x1
What property does this represent?
Identity Property
400
Piper is making bracelets. She made 5 on Friday, 20 on Saturday and only 2 on Sunday. She plans to give her 3 friends all the bracelets she has made. How many will they get each?
9 bracelets
500
Sara Jane was giving gifts to her 5 bridesmaids. She placed items in a bag. Each bag had:
1 coffee mug
2 necklaces
2 hair bow
How many total items did each bridesmaid get?
10 necklaces, 10 bows, 5 mugs=25
500
10x8=?
80
500
Jethro placed Snickers bars into stacks. He placed them in 2 stacks of 4. Beth placed her Hershey bars into stacks too. Beth had 3 stacks of 2. Beth claims she has more candy bars. Is she correct?
No, she has less
2x4-8
3x2=6
500
Are these the same?
0 / 5 =?
5 / 0 =?
No.
Zero divided by any number other than zero has a quotient of 0.
You can not divide by zero.
500
In this game, the person with the most points wins.
Who won?
Blue
10+10+20+20=60 Red
10+10+10+50=80 Blue