A number multiplied by another number
What is a multiple?
When you count on by a certain number (i.e. a number times 1, that number times 2, etc.)
Only 2- the number itself and 1.
What is the first term in the following number pattern?
3, 6, 9, 12, 15, 18
3
What is the Rule of Divisibility for the number 3?
Add the two digits together, if 3 goes into that, 3 goes into the number.
1, 2, 3, 4, 6, 12
True or False:
The number 14 is a multiple of 7.
The number 28 is a multiple of 4.
The number 4 is a multiple of 8.
TRUE
TRUE
FALSE
Is 15 a prime or composite number? Why?
15 is composite because you can make 15 with 1 X 15 and 3 X 5.
List the first five numbers in the pattern:
First Term: 27 Rule: Add 5, Subtract 3
____, ____, ____, ____, ____
27, 32, 29, 34, 31
2, 3, 4, or 8
What are all the factors for 56?
1 X 56, 2, X 28, 4 X 14, 7 X 8
What multiple of 12 is a factor of 12?
12
Is 23 a prime or composite number? Why?
Prime because you can only make 23 with 23 times 1.
Gabby wrote 3 poems today. She plans to write 2 more every day until Friday. How many poems will Gabby have written by Friday?
3, 5, 7, 9
9 poems
Draw an area model to prove why 23 is a prime number.
The only area model you can draw is 1 X 23.
True or False:
The number 36 is a factor of 9.
The number 4 is a factor of 12.
The number 18 is a factor of 3.
FALSE
TRUE
FALSE
8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96
Which of the following numbers are prime?
12, 37, 45, 52, 17
37 and 17
Jake shot 15 clay yesterday. He plans to shoot 10 more every day until Friday. How many clay pigeons will he have shot by Friday?
15 , 25, 35, 45, 55
55 clay pigeons
How many different arrays can you draw with the number 16?
1 X 16
4 X 4
2 X 8
Aaron arranged 36 Chrome books in carts. Which of the following are possible arrangements?
6 rows of 6 Chrome books
9 rows of 4 Chrome books
4 rows of 12 Chrome books
6 rows of 6 AND 9 rows of 4
Why is 16 a multiple of 2?
2 goes into 16 eight times evenly.
When you count by 2s, you will say 16.
Which of the following numbers are composite?
16, 29, 102, 49, 21
16, 102, 49, 21
Trevor wrote the number 22. If the rule is subtract 2, add 10, what is the sixth number in Trevor's pattern?
22, 20, 10, 8, 18, 16
True or False: 51 is a prime number.
FALSE: 3 times 17 is 51 :)