Prime & Composite
A number with only 2 factors is called ______________.
a prime number
Maria is 13 years old. Her grandma is 5 times older than Maria. How old is the grandma?
What is 65 years old? (13x5)
Paloma has 45 marbles. She has 5 times as many marbles as Isaac has.
How many marbles does Isaac have?
45 / 5 = 9
List all the factors of 11
1, 11
5x7=
35
A number with more than 2 factors is called ________________.
a composite number
Pedro has 15 toy cars. That is 3 times as many as his brother Erick. How many toy cars does Erick have? Write an equation for how many cars Erick has. (e stands for Erick's toy cars)
15/3=e
3 x e = 15
Ms. Flores has 24 students in her math class. Mrs. Thompson one third the amount of students. How many students does Mrs. Thompson have?
24/3=8 students
List four multiples of 5
10, 15, 20, 25, 30, etc
9x6=
54
What kind of number is 7? Prime or composite? Why?
What is a prime number because its only factors are 1 and 7
Mrs. Dean is 4 times as old as Arely. Arely is 9 years old. How old is Mrs. Dean?
9x4=36 years old
Jayden saw 5 columns of crayons in a box of 60 markers. How many markers are in each column? Solve.
60/5=12 in each column
Name four prime numbers
3, 5, 11, 13, 17, 19, etc
Write an equation to match the problem: 24 is 6 times more than 4.
6x4=24
1, 16, 2, 8, 4
Mr. Zeoli bought a sub sandwich and chips. The sub was 3 times as much as the chips. The chips costs $3. How much was the sub sandwich?
3x3=$9 for sub sandwich
Krista bought a pair of gloves and a coat. The coat was $54 and the gloves were $9. How many times more than the gloves did the coat cost?
54/9=6 times more
How many factors does a prime number have?
Only 2
7x_____=49
7
List ALL the factors for 48.
1, 48
2, 24
3, 16
4, 12
6, 8
What equation represents
"35 markers are 7 times the 5 crayons at the purple table"?
7x5=35 markers
Noni needed cupcakes for his birthday party. Cupcakes came in packs of 12. He has 36 people coming to his party. How many packs of cupcakes will he need?
36/12=3 packs of cupcakes.
List all the factors of 24.
1, 24, 2, 12, 3, 8, 4, 6
Write and solce an equation to match:
Michelle has 7 tea light candles. Emily has 5 times more candles than Michelle. How many candles does Emily have?
7x5=35 tea light candles