What is a factor?
A number that is multiplied by another number to get a product
5x10=
50
Rita bought a house for her turtle for $19. She got a heat lamp that cost 2 times as much. How much was the heat lamp?
$38
Give an example of a 1's fact
Anything x1= that number
Give an example of a prime number
2, 3, 5, 7, 11, 13, 17, 19, 23, 29 , etc.
True or false: A prime number only has two factors
True
7 x ___=49
7
Billy is 12 years old. How neighbor is 5 times as old as he is. How old is his neighbor?
60
What is a doubles fact?
A number x2
Give an example of a composite number
4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, etc.
What is a composite number?
A number that has multiple factors or factor pairs
___ x 9= 36
Sydney spent $36 on 4 games. How much did each game cost?
$9
Use the number 8 in a tens fact
8x10=80
What was the boy's name who visited the giant?
Jim
What is a factor pair?
Two numbers that are multiplied together to get a product.
50 x ___ = 100
2
Amy and her 2 friends each made 5 cakes. They need 8 times as many cakes for the town party. How many cakes does the town need in all?
120
(3x5)x8=120
What number are you multiplying by in a tens fact minus 1 set?
9
What multiplication strategy is this equation showing?
5x3=15
Half Tens
What is the answer of a multiplication question called?
The product
8x7=
56
Write a story problem for the equation 3x4=___ and solve it.
12
Give an example of a double double fact
nx4=p
(nx2)+(nx2)=p
We have 24 people in the fourth grade. Each student has 5 folders. How many folders are there in all?
120