What property of multiplication says that the following problems are true:
3 x 1 = 3
7 x 1 = 7
1 x 5 = 5
the Identity Property
100
Mrs. Simmons bought 8 boxes of erasers. Each box contains 3 packs, with 2 erasers in each pack. Write a number sentence that shows how many erasers she has in all.
8 x (3 x 2)
100
What are factors?
the numbers in a multiplication sentence
200
5 x 7 =
35
200
15 divided by 3
5
200
What property of multiplication says that it doesn't matter what order the numbers are in?
the Commutative Property
200
Matthew swims 6 laps at the community pool every day. Write an expression that could be used to find how many laps Matthew swims in a week?
(7 x 3) + (7 x 3) =
200
What is a dividend?
The first number in a division problem.
300
3 x 8 =
24
300
27 divided by 9
3
300
What property of multiplication makes the following number sentence true?
(3 x 4) x 5 = 3 x (4 x 5)
(7 x 10) x 2 = 7 x (10 x 2)
the Associative Property
300
Chelsea brought 32 pieces of candy to school to share with her friends. She used the following
equation to determine how many pieces of candy each person would get if she shared the candy with
herself and 3 friends.
32 ÷ 4 = ___
Which of the following equations could be used to check her work?
A. 8 + 4 = ___
B. 32 - 8 = ___
C. 4 × 8 = ___
D. 12 × 4 = ___
C. 4 x 8 = _____
300
What is a product?
The answer in a multiplication number sentence.
400
6 x 7 =
42
400
49 divided by 7
7
400
What property of multiplication is shown below:
7 x (3 + 4) = (7 x 3) + (7 x 4)
the Distributive Property
400
Isabella cannot remember the product of 6 × 8. Which of the following is another expression that Isabella could use to find the product of 6 × 8?
A. (6 × 6) + (6 × 2)
B. (6 × 4) + (6 × 2)
C. (6 × 1) + (4 × 2)
D. (6 × 2) + (8 × 3)
A. (6 x 6) + (6 x 2)
400
What is a divisor?
the second number in a division number sentence
500
8 x 9 =
72
500
56 divided by 7
8
500
Name all 4 Properties of Multiplication and give an example of each.
Identity Property - 3 x 1 = 3
Commutative Property - 3 x 2 = 2 x 3
Associative Property - (3 x 4) x 5 = 3 x (4 x 5)
Distributive Property - 10 x 5 = (5 x 5) + (5 x 5)
500
Carlos has 7 pictures of each of 2 types of deciduous trees. He also has 3 pictures of coniferous trees.
The expression below represents the total number of tree pictures Carlos has.
(7 × 2) + 3
Which expression also represents the total number of tree pictures Carlos has?