Vocabulary
What does it mean when a number is divisible by another number? Write down an example.
When a number is divisible, it means that it can equal another number given.
Example: 45 is divisible by 5
List all the factor pairs for 39.
They have to be listed in order.
1, 3, 13, 39
List the first 5 multiples for 4.
4, 8, 12, 16, 20
5, 10, 15, 20, _____, _____, _____, _____, _____,...
What are the missing numers?
25, 30, 35, 40, 45
An artist is arranging tiles in rows to decorate a wall. Each new row has 2 fewer tiles than the row below it. If the first row has 23 tiles, how many tiles will be in the seventh row?
What does common multiple mean?
When a number has a multiple in common with another number.
List all the factor pairs for 63.
They have to be listed in order.
1, 3, 7, 9, 21, 63
List the first 10 multiples for 3.
3, 6, 9, 12, 15, 18, 21, 24, 27, 30
Rule: add 3, subtract 1
First term: 6
List 10 numbers showing the pattern.
6, 9, 8, 11, 10, 13, 12, 15, 14, 17
Spiral Review.
To win a game, Idris needs to score 2,000 points. So far, he has scored 837 points. How many more points does Idris need to score?
He needs to score 1,163 more points.
What is a composite number?
A number that has more then 2 factors.
List all the factor pairs for 24.
They have to be listed in order.
1, 2, 3, 4, 6, 8, 12, 24
List the first 10 multiples for 12.
12, 24, 36, 48, 60, 72, 84, 96, 108, 120
Describe a pattern.
4, 8, 16, 32, 64,...
Rule: ________
Multiply by 2
Serena has several packages of raisins. Each package contains 3 boxes of raisins. Which could be the number of boxes of raisins Serena has?
Mark all that apply.
1. 9
2. 18
3. 23
4. 27
5. 32
Numbers 1, 2, 4
What is a prime number?
A number with only 2 factors.
List all the factor pairs for 25.
They have to be listed in order.
1, 5, 6, 25
List the next 9 multiples of each number. Find the common multiples.
Multiples of 4: 4,
Multiples of 7: 7,
Common multiples: 28
Describe a pattern.
3, 10, 17, 24, 31, 38, 45,...
Rule: ________
Add 7
What is a term?
List all the factor pairs for 40.
They have to be listed in order.
1, 2, 4, 5, 8, 10, 20, 40
List the next 9 multiples of each number. Find the common multiples.
Multiples of 3: 3,
Multiples of 9: 9,
Common multiples: 9, 18, 27
Use the rule to make the pattern.
Rule: Add 6, add 9
First Term: 12
Give me the first 10 numbers in the pattern.
12, 18, 27, 33, 42, 48, 57, 63, 72, 78