1. Question
Given the following set of numbers:
3.3, -2.3, -16, 25
What are the square roots of the whole number?
a. +/- 4.0
b. +/- 5.0
c. +/- 3.3
d. +/- 2.3
Answer
+/- 5.0
Brief explanation
25 is the only whole number. The square roots of 25 are ±5.
Videos
Classifying Real Numbers [9:36] and Working with Real Numbers [9:30]
Pages for additional practice
Module 1: 1.02-Number Systems and 1.18-Introduction to Square Root
2. Question
Given the following set of numbers:
10, 2.5, -4, -4.5, 5
What is the sum when adding together only the whole numbers?
a. 5.5
b. 15.0
c. 12.5
d. 11.0
Answer
15.0
Brief explanation
10 and 5 are the only whole numbers, and 10 + 5 = 15.
Videos
, lOMoAR cPSD| 48519099
Classifying Real Numbers [9:36] and Working with Real Numbers [9:30]
Pages for additional practice
Module 1: 1.02-Number Systems
3. Question
Given the following expression:
What is the correct answer using the proper order of operations?
a. 67
b. 25
c. 99
d. 46
Answer
67
Brief explanation
Use PEMDAS-> 4 + 7 × 3^2 = 4 + 7 × 9 = 4 + 63 = 67
Video
Order of Operations and Rounding
Pages for additional practice
Module 1: 1.11 Introduction to Exponents and 1.12-1.13 Order of
Operations
4. Question
Given the following expression:
What is the correct answer using the proper order of operations?
a. 49
b. 34
c. 65
d. 81
Answer
49
, lOMoAR cPSD| 48519099
Brief explanation
Use PEMDAS-> 5 × 3^2 + 4 = 5 × 9 + 4 = 45 + 4 = 49
Video
Order of Operations and Rounding
Pages for additional practice
Module 1: 1.11 Introduction to Exponents and 1.12-1.13 Order of
Operations
5. Question
What is the greatest common factor of 132 and the square root of 121 using
prime factorization?
a. 2
b. 1
c. 10
d. 11
Answer
11
Brief explanation
The square root of 121 is 11, and 11 is the largest number that divides
evenly into both 132 and 11.
Video
Prime Factorization and GCF [8:54]
Pages for additional practice
Module 1: 1.17 Prime Factorization and Greatest Common Factors and
1.18-Introduction to Square Root
6. Question
What is the greatest common factor of 24 and 84 using prime factorization?
a. 12
b. 2
c. 8
d. 4
Answer
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