Math Properties
What property is used in the example below:
1 x 7 = 7
Identity Property of Multiplication
Draw and array for 1 x 9
Array should show 1 row of 9
Solve the equation 9 x 7 =
63
Tamika has 2 pies. She cuts each pie into 6 pieces. Write and solve an equation to find the number of pieces of pie that Tamika has.
2 x 6 = 12
or
6 x 2 = 12
Solve the two equations below.
0 x 7 = _____
10 x 7 = _____
0
70
What property is used in the example below:
0 x 8 = 0
Zero Property
Draw an array for 2 x 4
Array should show 2 rows of 4.
Solve the equation 6 x 9 =
54
Lucy has 9 nickels in her pocket. Write an expression that represents how many cents Lucy has in her pocket.
5 x 9 = 45
or
9 x 5 = 45
Which number completes the equation? Select all that apply. ____ X 0 = 0
9
5
2
1
0
All choices
What property is used in the example below:
2 x 5 = 5 x 2
Commutative Property
81
Elana has 4 jewelry boxes. She keeps 5 necklaces in each box. How many necklaces does Elana have?
4 x 5 = 20
or
5 x 4 = 20
A beaded bracelet has 3 different colored beads that make a pattern. The pattern repeats 10 times. Write and solve an equation to find the number of beads.
3 x 10 = 30
10 x 3 = 30
3+3+3+3+3+3+3+3+3+3= 30
10+10+10= 30
What is the definition of Commutative property of multiplication?
The factors can be arranged in any order and the product will remain the same.
James told Lilly he baked 15 muffins on a rectangular pan. Which sentence could Lilly use to describe how muffins were baked?
15 rows of 15 muffins
15 rows of 3 muffins
5 rows of 3 muffins
5 rows of 5 muffins
5 rows of 3 muffins
A garden has 9 rows of tomato plants. There are 7 plants in each row. Write and solve an equation to find the total number of tomato plants.
9 x 7 = 63
At the fair, tickets are $6 for each adult. Five adults attend the fair. What is the total cost of their tickets?
6 x 5 = 30
or
5 x 6 = 30
Leon Says that when any number between 1 and 9 is multiplied by 0, the product always has a 0 or 5 in the ones place. Is this reasonable? Explain
No. Anything Multiplied by zero equals zero.
Tara arranges her dimes into 4 rows and 9 columns. Morgan arranges her dimes into 9 rows and 4 columns. Who has more dimes? Explain.
They both have the same amount because commutative property says you can but the factors in any order and the product will be the same.
4 x 9 = 9 x 4
Draw an array for 2 x 3 and another array for 3 x 2. What similarities do you see?
They both have the same number of counters altogether.
Jade has read 9 books in the same level. What are the possible points Jade has earned? Write multiplication equation for each level.
Level A - 2 points
Level B - 5 points
Level C - 10 points
9 x 2 = 18
9 x 5 = 45
9 x 10 = 90
Use the expression 5 x ? where ? represents a factor between 1 and 9. What is true about the digit in the ones place of each product? Explain.
All multiples of 5 end with a zero or five.
Jaxson has 50 daisies to plant in window boxes. Each window box holds 10 flowers. How many window boxes does he need to buy? Explain how you found your answer.
10 flowers in each of 5 boxes equals 50 flowers.
He needs to buy 5 window boxes.
10 x 5 = 50