Prime and Composite
A number that can only be multiplied by 1 and itself.
Prime
Jenna is 11 years old. Her grandma is 6 times older than Jenna. How old is the grandma?
66
36 divided by 6 = _________
6
Solve.
(4x5)+(5x6)= ______
20 + 30 = 50
6 X 8 =
What type of equation is this?
48
Double, double, double
A number that has MORE factors than 1 and itself.
Composite
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?
21 X 3 = c
63
Ms. K has 124 students in her math class. Ms. J has half the amount of students. How many students does Ms. J have?
62
Table 1 has 5 students. Each student has 15 pencils. Table 2 has 4 students. Each student has 18 pencils.
How many pencils do both groups have total?
5 X 15 = 75 4 x 18 = 72
72 + 75 = 147 pencils
7x9=____
What type of equation is this?
63
tens minus one
What kind of number is 17? Prime or composite? Why?
Prime
Ms. Green is 4 times as old as Mason. Mason is 12 years old. How old is Ms. Green?
48
Jack saw 6 columns of crayons in a box of 108 crayons. How many crayons are in each column? Solve.
18
The 2nd grade has 162 students. The 4th grade has 3 times as many students in 2nd grade. How many MORE students are in 4th grade?
162 X 3= 486
486- 162=
324
7x_____=28
What type of equation is this?
4
Double, double
49 is a ___________ number. Because _________________________
Composite
Ms. Breidenstein bought pants and a top. The pants were 8 times as much as the top. The top costs $15. How much were the pants?
$120.00
Krista bought a book and a toy. The toy cost $96 and the book cost $12. How many times more than the book did the toy cost?
8
Ms. B has 5 library bins. Each bin has 16 books.
Ms. K has 8 library bins. Each bin has 9 books.
They need to combine their books and divide them EVENLY between the two classes? How many books will each class get?
5 X 16 =80
8X9 = 72
72 + 80 =152 / 2 = 76
5 X ____ = 125
What type of equation is this?
25
Half ten
List ALL the factors for 54
1, 2, 3, 6, 9 ,18, 27, 54
What equation represents
"35 markers are 7 times the 5 crayons at the purple table"?
35 = 7 X 5
Katherine needed cookies for her birthday party. Cookies came in packs of 15. She has 120 people coming to her party. How many packs of cookies will she need?
8 packs
There are 8 students at the green table. They each brought 3 packs of markers. The class needs 6 times as much markers as the green table. How many packs of markers does the class need?
8 X 3 = 24
24 X 6 = 144
answers can vary