1. ORDER OF OPERATIONS BEMDAS. 1. Brackets - ( ) or [ ]
2. Exponents or Powers
3. Multiply and Divide (from left to right)
4. Add and Subtract (from left to right)

2. Once again, evaluate 7 + 4  3 and use the order of operations.
= (Multiply.)
= (Add.)

3. Example #1 14 ÷ 7 • 2 - 3
= 2 • (Divide l/r.)
= (Multiply.)
= 1 (Subtract.)

4. Example #2 3(3 + 7) 2 ÷ 5 = 3(10) 2 ÷ 5 (parentheses)
= 3(100) ÷ 5 (exponents)
= 300 ÷ 5 (multiplication)
= 60 (division)

5. Example # • (6 + 1) • 4
= • (7) • 4 (parentheses)
= • (7) • 4 (exponents)
= (7) • (Multiply l/r.)
= (Multiply l/r.)
= (Subtract l/r.)
= (Add l/r.)
= (Add.)

6. Which of the following represents 112 + 18 - 33 · 5 in simplified form?
-3,236 4
107
16,996
Answer Now

7. Simplify (10 - 3) 2 -7 12 98
Answer Now

8. Simplify 24 – 6 · 4 ÷ 2 72 36 12
Answer Now

9. Evaluating a Variable Expression To evaluate a variable expression:
substitute the given numbers for each variable.
use order of operations to solve.

10. Example # 4 n + (13 - n)  5 for n = 8
= 8 + (13 - 8)  (Substitute.)
=  (parentheses)
= (Divide l/r.)
= (Add l/r.)

11. Example # 5 8y - 3x2 + 2n for x = 5, y = 2, n =3
= 8    (Substitute.)
= 8    (exponents)
=   (Multiply l/r.)
=  (Multiply l/r.)
= (Multiply l/r.)
= (Subtract l/r.)
= (Add l/r.)

12. What is the value of -10 – 4x if x = -13?
-62
-42 42 52
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13. What is the value of 5k3 if k = -4?
-8000
-320
-60
320
Answer Now

14. What is the value of if n = -8, m = 4, and t = 2 ?10
-10 -6 6
Answer Now