Prime & Composite
A number that can only be multiplied by 1 and itself.
What is a prime number?
Jenna is 11 years old. Her grandma is 6 times older than Jenna. How old is the grandma?
What is 66 years old? (11x6)
Write the next 3 terms of the pattern.
2, 6, 10, ___, ___, ____
14, 18, 22
Solve.
(4x5)+(5x6)= ______
20+30=50
Mr. Johnson has 5 times as many baseball cards as football cards. Write an equation comparing his baseball cards to his football cards.
f =b/5
OR
b = 5f
A number that has MORE factors than 1 and itself.
What is a composite number?
Jeremy got candy for Christmas. He got 21 pieces of candy. His sister got 3 times as much candy as Jeremy. What equation represents how much candy his sister got?
21x3=C (c represents candy)
Ms. H has 24 students in her math class. Ms. J has half the amount of students. How many students does Ms. J have?
24/2=12 students
Table 1 has 5 students. Each student has 4 pencils. Table 2 has 4 students. Each student has 4 pencils.
How many pencils do both groups have total?
4x4=16
20+16=36 pencils total
Amazon delivers 187 packages to Mrs. Johnson and 342 packages to Mr. Johnson in 2025. Write an equation that shows how many packages were delivered in all to the Johnson household.
187 + 342 = p
What kind of number is 7? Prime or composite? Why?
What is a prime number because its only factors are 1 and 7?
Ms. Green is 4 times as old as Mason. Mason is 10 years old. How old is Ms. Green?
10x4=40 years old
Jack saw 5 columns of crayons in a box of 30 crayons. How many crayons are in each column? Solve.
30/5=6 in each column
The 2nd grade has 60 students. The 4th grade has 2 times as many students in 2nd grade. How many MORE students are in 4th grade?
60x2=120 students
120-60=60 more students
A container holds 35 boxes of pencils. Write an equation to show how many boxes of pencils are in 7 full containers.
35 x 7 = b
16 is a ___________ number. Because _________________________
What is a composite number because it has multiple factors (1,16,2,8,4)?
Ms. Breidenstein bought pants and a top. The pants were 3 times as much as the top. The top costs $15. How much were the pants?
15x3=$45 for the pants
Write the next 3 terms in the pattern.
30, 60, 120, ____, _____, _____
240, 480, 600
Ms. B has 5 library bins. Each bin has 6 books.
Ms. K has 2 library bins. Each bin has 5 books.
They need to combine their books and divide them EVENLY between the two classes? How many books will each class get?
Ms. B= 5x6=30
Ms. K= 2x5=10
30+10=40
40/2= 20 books each class
(14 + 16) / (9 - 3) = n
n = 30/6 = 5
List ALL the factors for 20.
What is 1, 20, 10, 2, 5, and 4?
A company gets a large number of calls on Monday. Then it gets 1,270 more calls on Tuesday. The company gets 4,896 calls during these two days. How many calls did the company get on Monday?
Write an equation and solve.
4,896 - 1,270 = c
c = 3,626 calls
40/5=8 packs of cookies.
There are 4 students at the green table. They each brought 2 packs of markers. The class needs 4 times as much markers as the green table. How many packs of markers does the class need?
4x2=8x4=32 packs of markers
(7+2) x 9 = n x 9
n = _____
n = 9