What is the acronym that helps you remember the order of operations?
PEMDAS
100
Name the property
5 x (14 x 32) = (5 x 14) x 32
Associative property of multiplication
100
Find the missing number.
4(28) = 4(20) + 4(____)
8
100
A diner has booths and counter seating. Each booth can seat 4 people. Another 15 people can sit at the counter. Write an expression that shows how many customers can be seated in the diner?
4b + 15
200
42 increased by the product of 2 and a number r
2r + 42
200
According to order of operations, what would you do first? Multiplication or Division
You would do the operation either division or multiplication that comes first reading left to right.
200
15 + 48 + 54 = 48 + 15+ 54
Commutative Property of addition
200
Find the missing number.
3(28) + (3)2 = _____(30)
3
200
What property is shown?
(25 x 6) x 1 x 7 = (25 x 6) x 7
Identity property of multiplication
300
6 less than the quotient of a number f and 2
f/2 - 6
300
Write the expression and evaluate.
48 divided by the sum of 4 and 8 added to 2 squared
8
300
Find the missing number and tell what property or properties are shown.
25 + 0 + (3 + 16) = (25 +____) +3
missing : 16
Identity property of addition and associative property of addition.
300
Find the missing number.
20(33-5) = 20(_____) + 20(8)
20
300
Evaluate
88 - 6 x 6
52
400
The soccer team was having a fund raiser to buy new uniforms. They sold donuts (d), brownies (b) and cookies (c). Write an expression to represent how much they sold in all.
d + b + c
400
Write and evaluate the expression.
48 divided by 4 plus 8 plus 2 squared
24
400
What operations do not allow you to use the associative and commutative properties?
subtraction and division
400
How could you use the distributive property to do this expression using mental math.
3(45) + 3(5)
3(45 + 5)
3(50)
400
Evaluate
18 + 3 x (6/2)
27
500
James needed new art supplies. The brushes cost $4 each, the paint costs $ 2 for each tube. Write an expression to represent how much he would spend if he bought b brushes and t tubes of paint.
4b + 2t
500
Use parentheses to make the number sentence true.
5 x 6 x 8 - 7 = 30
5 x 6 x (8 - 7) = 30
500
Rewrite the expression using the identity property of multiplication and the commutative property of multiplication.
33.5 x 21.5
21.5 x 33.5 x 1
500
Use the distributive property and mental math to evaluate.
3(21) - 3(11)
3(21-11)
3(10)
500
Describe the mental math steps you would take to find 7(42).