Expression Basics
What makes something an expression instead of an equation?
An expression has numbers and operation symbols but no equal sign.
What is the first step in Order of Operations (PEMDAS)?
Parentheses
Fill in the blanks:
5 x (8 + 2) = (5 x ___) + (5 x ___)
(5 x 8) + (5 x 2)
Write expression and then solve.
"The sum of 9 and 6."
9 + 6 = 15
Mickey Mouse
Which of these is an expression?
6 + 3 = 9
5 x (2 + 4)
6 + 3 = 9
Solve 6 + 4 x 2
14
Use distributive property to solve.
4 x (7 + 3)
(4 x 7) + (4 x 3)
28 + 12 = 40
Write an expression and solve.
"Twice the sum of 9 and 6."
2 x (9 +v6) = 30
What is the title of Forrest Frank's Most Popular Album?
Child Of God
Write an expression that means "the sum of 8 and 12."
8 + 12
(6 + 4) x 2
20
Which of the following shows the distributive property?
1. 3 x (9 + 1) = (3 x 9) + (3 x 1)
2. 6 + 2 = 8
1.
Write the expression and solve.
"10 more than 3 times 7."
(3 x 7) + 10 = 31
What popular video game was first released in 2017?
Fortnite
True or False: The expression 7 x (5 + 3) can also be written as 7 x 5 + 3.
False
10 + 3 x (6 - 2)
22
(6 x 9) - (3 x 2)
54 - 6 = 48
A farmer sells 3 baskets of apples with 12 apples each, then 8 more separately.
Write an expression and solve.
(3 x 12) + 8 = 44 apples
What country has won the most World Cup?
Brazil (Brasil)
Explain the order of the steps in this expression.
3 x (10 + 4)
Add 10 + 4 = 14
Multiply 3 x 14 = 42
Why do you need order of operations?
So everyone solves the problems the same way and correctly.
How does the distributive property show fairness?
It splits amounts evenly.
Sarah has 4 times as many pencils as Jake. jake has 7 pencils. Write expression and solve.
4 x 7 = 28 pencils
In the Lion King, this colorful bird is in charge of keeping an eye on Simba and reporting back to Mufasa.
Zazu