1. Lesson Quizzes Preview 1-1 Variables and Expressions
1-2 Adding and Subtracting Real Numbers
1-3 Multiplying and Dividing Real Numbers
1-4 Powers and Exponents
1-5 Roots and Irrational Numbers
1-6 Properties of Real Numbers
1-7 Simplifying Expressions

2. 1-1 Variables and Expressions
Lesson Quiz: Part I
Give two ways to write each algebraic
expression in words.
1. j – 3
2. 4p
3. Mark is 5 years older than Juan, who is y years old. Write an expression for Mark’s age.
Possible answers:
The difference of j and 3; 3 less than j.
Possible answers:
4 times p; The product of 4 and p.
y + 5

3. 1-1 Variables and Expressions
Lesson Quiz: Part II
Evaluate each expression for the replacement set {5, 8, 12}. d
Shemika practices basketball for 2 hours each
day. d 2 5 2
; 4; 6
11; 14; 18
6. Write an expression for the number of hours she
practices in d days.
7. Find the number of hours she practices in 5, 12,
and 20 days. 2d
10 hours; 24 hours; 40 hours

4. 1-2 Adding and Subtracting Real Numbers
Lesson Quiz
Add or subtract using a number line.
1. –2 + 9 7
2. –5 – (–3) –2
Add or subtract.
3. – 19
– (–3.7)
8.2 5.
6. The temperature at 6:00 A.M. was –23°F.
At 3:00 P.M., it was 18°F. Find the difference
in the temperatures.
41°F

5. 1-3 Multiplying and Dividing Real Numbers
Lesson Quiz
Find the value of each expression. 1. 35 –7 –5
2. 2(–6)
–12
Multiply or divide if possible.
3. –3 ÷ 1 3 4
(0)
4. –2 1 3 – 12 7
5. –
 0 3 4
undefined 6.
A cyclist traveled on a straight road for 1 hours at a speed of 12 mi/h. How many miles did the cyclist travel? 1 4
15 miles

6. n n 1-4 Powers and Exponents Lesson Quiz
1. Write the power represented by the geometric model. n2 n
Simplify each expression.
3. –63
−216 2.
4. 6
216
5. (–2)6 64
Write each number as a power of the given base.
; base 7 73
7. 10,000; base 10
104

7. 1-5 Roots and Irrational Numbers
Lesson Quiz
Find each square root. 4. 1. 3 2. 3. 5 1
5. The area of a square piece of cloth is 68 in2. Estimate to the nearest tenth the side length of the cloth.
 8.2 in.
Write all classifications that apply to each real number.
6. –3.89
rational, repeating decimal 7.
irrational

8. 1-6 Properties of Real Numbers
Lesson Quiz: Part I
Name the property that is illustrated in each equation.
1. 6(rs) = (6r)s
Associative Property of Multiplication
2. (3 + n) + p = (n + 3) + p
Commutative Property of Addition
3. (3 + n) + p = 3 + (n + p)
Associative Property of Addition
4. Find a counterexample to disprove the statement “The Commutative Property is true for division.”
Possible answer: 3 ÷ 6 ≠ 6 ÷ 3

9. 1-6 Properties of Real Numbers
Lesson Quiz: Part II
Write each product using the Distributive Property. Then simplify.
5. 8(21)
8(20) + 8(1) = 168
6. 5(97)
5(100) – 5(3) = 485
Find a counterexample to show that each statement is false.
7. The natural numbers are closed under subtraction.
Possible answer: 6 and 8 are natural, but 6 – 8 = –2, which is not natural.
8. The set of even numbers is closed under division.
Possible answer: 12 and 4 are even, but 12 ÷ 4 = 3, which is not even.

10. 1-7 Simplifying Expressions
Lesson Quiz
Simplify each expression. 2.
200 8
3. The volume of a storage box can be found using the expression lw(w + 2). Find the volume of the box if l = 3 feet and w = 2 feet.
24 ft³
Simplify each expression by combining like terms. 4.
5. 14c2 – 9c
14c2 – 9c
6. Use properties and operations to show that
24a + b² + 3a + 2b² simplifies to 27a + 3b².
Check students’ work.