Download (G8)Homework Packet #11

(G8)Homework Packet #11
Use the order of operations to evaluate the expression.
____
____
1. 15 + 9/3 - 2
1)
2)
6
24
2. 60% as a decimal
1)
0.4
2)
3)
4)
0.06
3)
16
4
0.65
4)
0.6
Find each number. Round to the nearest tenth if necessary.
____
3. Find 25% of $460.
1)
2)
$230
$135
3)
4)
$115
$1840
____
4. What is the value of the product ? (Use mental math) [Move the decimal]
1)
11,814,000
3)
118,140
2)
0.011814
4)
1,181,400
____
5. Which of the following numbers is a prime number?
10, 20, 35, 47, 66, 81
1)
20
3)
2)
66
4)
47
10
6. Which of the following numbers is a composite number?
5, 23, 47, 73, 77, 79
1)
77
3)
2)
23
4)
79
5
____
Find the product. Simplify.
____
7. 4/5 of 40
1)
32
2)
3)
12
4)
____
8. Suppose you have 15 muffins. How many muffins are left after you give a friend of them?
1)
12 muf2)
10 muf3)
45 muf4)
5 muffins
fins
fins
fins
____
9. Find the reciprocal of
1)
9
2)
11
3)
0.04
3)
4)
Write the percent as a decimal.
____ 10. 4%
1)
0.004
2)
0.4
____ 11. A letter or other symbol that represents an unknown quantity is called a
1)
vertex
3)
2)
integer
4)
4)
operation
variable
4
____ 12. The numerical factor of a term that contains a variable is called a
1)
coefficient
3)
2)
property
4)
multiple
constant
____ 13. When simplifying an expression, you ____ perform operations inside grouping symbols first.
1)
always
2)
sometimes
3)
never
____ 14. Evaluate the expression for a = 4 and b = 3.
1)
36
2)
24
3)
81
4)
144
3)
128
4)
92
Simplify the expression.
____ 15. 4(20 + 12) / (4 - 3)
1)
29
2)
80
____ 16. Name the set(s) of numbers to which 1.68 belongs.
1)
rational numbers
2)
natural numbers, whole numbers, integers,
rational numbers
3)
rational numbers, irrational numbers
4)
none of the above
____ 17. Name the set(s) of numbers to which –5 belongs.
1)
2)
3)
4)
whole numbers, natural numbers, integers
rational numbers
whole numbers, integers, rational numbers
integers, rational numbers
____ 18. The opposite of a negative number is ____ negative.
1)
always
2)
sometimes
3)
never
Solve the equation. Then check your solution.
____ 19. -19z - 18 = -16z + 3
1)
2)
–7
7
3)
4)
____20. List the whole numbers that satisfy the inequality n/3 is less than or equal to 2.
1)
{0, 1, 2, 3, 4, 5}
3)
{0, 1, 2, 3, 4, 5, 6}
2)
{1, 2, 3, 4, 5}
4)
{1, 2, 3, 4, 5, 6}
Short Answer
Solve the equation.
21. 5p/7 - 18 = -43
22. 5x – 5 = 3x – 9
Simplify the expression.
23. 3[(15 - 3)^2 / 4]
24. Find the perimeter of the following figure. All sides are equal. [5 in.]
25. Order these numbers from least to greatest.
3 3/7, , 3.571, 3.34, 3 3/4 , 3.9