OAE – Elementary Education Subtest 2 (019) Practice
Exam Study Guide
Natural numbers - correct answer ✔✔ All numbers 1, 2, 3, 4... They are the numbers you usually
count and they will continue on into infinity.
Whole numbers - correct answer ✔✔ All natural numbers but it includes 0 as well
e.g. 0, 1, 2, 3, 4...
Integers - correct answer ✔✔ Include all whole numbers and their negative counterpart e.g. ...-
4, -3, -2, -1, 0,1, 2, 3, 4,...
Place natural numbers, whole numbers and integers in the correct order based upon their
subsets. - correct answer ✔✔ Natural numbers are whole numbers, whole numbers are
integers.
Which of the following numbers is closest in value to 2.5 x 10^-2?
A. 0.021
B. 2.3
C. 2/10
D. 22/100 - correct answer ✔✔ A. 0.021
What is prime factorization? - correct answer ✔✔ Finding which prime numbers multiply
together to make the original number.
,What is a prime number? - correct answer ✔✔ A whole number greater than 1 that CANNOT be
made by multiplying other whole numbers
What is a rational number? - correct answer ✔✔
What is a composite number? - correct answer ✔✔ a whole number greater than 1 that CAN be
made by multiplying other whole numbers
What is the prime factorization of 144?
A. 2 x 3
B. 2^4 x 3^2
C. 4 x 2^2 x 32
D. 3 x 4 x 6 x 2 - correct answer ✔✔ B. 2^4 x 3^2
Which of the following questions can be used to determine whether a number with 4 digits is
divisible by 4?
A. Is the last digit divisible by 4?
B. Are the last two digits a number that is divisible by 4?
C. Is the sum of the last three digits divisible by 4?
D. Is the sum of all the digits divisible by 4? - correct answer ✔✔ B. Are the last two digits a
number that is divisible by 4?
Which of the following problem-solving strategies would be most appropriate for solving the
problem shown below?
, "Four children sitting at a table are all wearing shirts of different colors --- blue, red, green, and
tan. Jared is wearing a blue shirt. Lucy is not wearing a red or a tan shirt. Corinna is wearing
either a red or a tan shirt. Pablo is wearing either a blue or tan shirt. What color shirt is Lucy
wearing?"
A. Working backward
B. Making a chart
C. Finding a pattern
D. Setting up an equation - correct answer ✔✔ B. Making a chart
Which of the following types of manipulatives is most appropriate for investigating and finding
relationships between fractions?
A. Number cubes
B. Geoboards
C. Pattern blocks
D. Tangrams - correct answer ✔✔ C. Pattern blocks
Pattern blocks can be used to investigate and find relationships between fractions by making
comparisons such as the number of triangles needed to make a trapezoid and the number
needed to make a rhombus of a similar size.
Number cubes - correct answer ✔✔ Different colored dies with numbers on each face of them
Pattern blocks - correct answer ✔✔ Can be used to investigate and find relationships between
fractions by making comparisons such as the number of triangles needed to make a trapezoid
and the number needed to make a rhombus of a similar size.
Exam Study Guide
Natural numbers - correct answer ✔✔ All numbers 1, 2, 3, 4... They are the numbers you usually
count and they will continue on into infinity.
Whole numbers - correct answer ✔✔ All natural numbers but it includes 0 as well
e.g. 0, 1, 2, 3, 4...
Integers - correct answer ✔✔ Include all whole numbers and their negative counterpart e.g. ...-
4, -3, -2, -1, 0,1, 2, 3, 4,...
Place natural numbers, whole numbers and integers in the correct order based upon their
subsets. - correct answer ✔✔ Natural numbers are whole numbers, whole numbers are
integers.
Which of the following numbers is closest in value to 2.5 x 10^-2?
A. 0.021
B. 2.3
C. 2/10
D. 22/100 - correct answer ✔✔ A. 0.021
What is prime factorization? - correct answer ✔✔ Finding which prime numbers multiply
together to make the original number.
,What is a prime number? - correct answer ✔✔ A whole number greater than 1 that CANNOT be
made by multiplying other whole numbers
What is a rational number? - correct answer ✔✔
What is a composite number? - correct answer ✔✔ a whole number greater than 1 that CAN be
made by multiplying other whole numbers
What is the prime factorization of 144?
A. 2 x 3
B. 2^4 x 3^2
C. 4 x 2^2 x 32
D. 3 x 4 x 6 x 2 - correct answer ✔✔ B. 2^4 x 3^2
Which of the following questions can be used to determine whether a number with 4 digits is
divisible by 4?
A. Is the last digit divisible by 4?
B. Are the last two digits a number that is divisible by 4?
C. Is the sum of the last three digits divisible by 4?
D. Is the sum of all the digits divisible by 4? - correct answer ✔✔ B. Are the last two digits a
number that is divisible by 4?
Which of the following problem-solving strategies would be most appropriate for solving the
problem shown below?
, "Four children sitting at a table are all wearing shirts of different colors --- blue, red, green, and
tan. Jared is wearing a blue shirt. Lucy is not wearing a red or a tan shirt. Corinna is wearing
either a red or a tan shirt. Pablo is wearing either a blue or tan shirt. What color shirt is Lucy
wearing?"
A. Working backward
B. Making a chart
C. Finding a pattern
D. Setting up an equation - correct answer ✔✔ B. Making a chart
Which of the following types of manipulatives is most appropriate for investigating and finding
relationships between fractions?
A. Number cubes
B. Geoboards
C. Pattern blocks
D. Tangrams - correct answer ✔✔ C. Pattern blocks
Pattern blocks can be used to investigate and find relationships between fractions by making
comparisons such as the number of triangles needed to make a trapezoid and the number
needed to make a rhombus of a similar size.
Number cubes - correct answer ✔✔ Different colored dies with numbers on each face of them
Pattern blocks - correct answer ✔✔ Can be used to investigate and find relationships between
fractions by making comparisons such as the number of triangles needed to make a trapezoid
and the number needed to make a rhombus of a similar size.
