Name __________________________________________________ PD _________
1.1-1.4 STUDY GUIDE
Expressions and Variables
Powers and Exponents
Order of Operations (P.E.M.D.A.S.)
Comparing and Ordering Integers
Directions: Evaluate the expression when X = 2. Show all steps.
1.
6+X
2.
9X
3.
12 / X
Directions: Evaluate the expressions when W = 6 and Y = 4. Show all steps.
4.
8Y
5.
W–Y
6.
Y + 10 – W
7. Given Y3:
a. What is the base? _________
b. What is the exponent? ________
c. How would you write this as a repeated multiplication?
____________________________________________________________________
d. If Y = 3, evaluate the expression. ________________________________________
P.E.M.D.A.S.
Evaluate the expressions.
8. 8 + 10 * 3
9. 11 * 4 + 2 * 5
10. 40 + 22
11. 50 + (42 – 6)
12. 4 (10 – 2 * 2)
13. 3 [ 7 + (6 – 5)]
Write the integers in order from least to greatest.
14. -7, 0, 4, -3, -4, 2 _____________________________________________
15. -5, 0, -1, -7, -6, 1 _____________________________________________
16. 6, 9, -5, -7, -3, 2 _____________________________________________
Complete the statement using < or >.
17.
-7 ____ 4
18.
-8 ____ -2
19. 9 ____ 0
20.
-15 ____ -12
State the absolute value of the number.
21. 12 ______
22.
-15 ______
23.
-30 ______
24.
88 ________
-99 _______
28.
110 ________
State the opposite of the number.
25.
-20 ______
26.
25 _______
27.
29. You can evaluate the expression 10x to find the total cost of t-shirts when x shirts are
purchased for $10 each. Find the amount spent when you buy 4 t-shirts.