Expression and Multiplication

Evaluate 2r + 1      if   r = 3

• 6

• 5

• 7

• 8

evaluate bc + 5a  
when  a = 3, b = 4, and c = -6

• 9

• 38

• -38

• -9

If y= -3 --> Evaluate 4y+ 2

• -10

• -14

• 14

• 10

If m= -5 and n= -6 --> Evaluate mn + n

• -24

• -36

• 24

• 36

If y² = y ⋅ y, then what would y² equal when y = -5 ?

• -25

• 25

• 55

• -10

Evaluate if a=3 and b= -2

• -24

• -5

• 6

• 4

The order in which expressions are evaluated: Parenthesis, Exponents, Multiplication & Division (left to right), Addition & Subtraction (left to right).

• Order of Mathematics

• Order of Equations

• Order of Operations

• Order of Teaching Math

Identify the variables in the expression
3x +  9

• x

• y

• 9

• 3x

12 ÷ 3 x 4
What do you do first?

• 3x4

• 12÷4

• 12÷3

How do you write this in exponent form?
4 * 4 * 4 * 4 * 4 * 4 * 4 * 4

• 4⁷

• 65,536

• 4⁸

• 7⁴