Vocabulary
What is a product?
The answer to a multiplication problem
2 x 2
4
1 x 1 x 1
1
Nataleigh has 2 cats. Each cat has 4 paws. How many total paws are there?
8 paws
The answer to this multiplication problem is 9
3 x 3
9 x 1
What is a factor?
A number that is multiplied to get a product
5 x 3
15
10 x 6 x 0
0
Sara has 3 barns. Each barn has 6 horses. How many horses does Sara have?
18 horses
The answer to this multiplication problem is 14
2 x 7
14 x 1
What does it mean to decompose?
To break something into parts
10 x 7
70
3 x 5 x 2
30
Case has 2 fields of hay. He works in each field for 2 hours. He does this for 3 days. How many hours does Case work all together?
12 hours
4
What is the difference between and equation and an expression?
An equation contains the equals sign and the answer. An expression is just the first part of the math fact.
Equation: 3 x 7 = 21
Expression: 3 x 7
11 x 3
33
4 x 2 x 20
160
There are 5 parking lots. Each parking lot has 10 cars. Each car has 4 tires. How many total tires are there in the parking lots?
200 tires
Fill in the blanks:
7 x 6 = (5 x 6) + (___ x 6) = _____
7 x 6 = (5 x 6) + (2 x 6) = 42
What is the commutative property?
The idea that you can change the order of the factors in an equation and still get the same answer.
12 x 5
60
20 x 5 x 5
500
Willis runs for 6 miles every Monday, Wednesday, and Friday. He does this for 4 weeks. How many miles does Willis run?
72 miles
Fill in the blanks:
40 x 4 = ____ tens x 4 = _____ tens = _____
40 x 4 = 4 tens x 4 = 16 tens =160