PRAXIS CORE EXAM QUESTIONS WITH
CORRECT ANSWERS
Whole Numbers - CORRECT ANSWER✔✔-0 and go on forever: 1, 2, 3
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and so on. Each whole number is separated from the next by a quantity
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of 1
|
Partial Numbers - CORRECT ANSWER✔✔-Fractions and decimals; not
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whole numbers |
Positive and Negative numbers - CORRECT ANSWER✔✔-a negative
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number is the opposite of a positive number, and vice versa.
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Integers - CORRECT ANSWER✔✔-All the whole numbers and their
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opposites. The only integer that doesn't have an opposite is 0
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Absolute Value - CORRECT ANSWER✔✔-an integer's positive distance
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from 0. It's value without a negative sign.
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Ex: |4| = 4 or |-4| = 4
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,Working with integers - CORRECT ANSWER✔✔-* Subtracting an integer
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is the same as adding its opposite, and adding a number is the same as
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subtracting its opposite. | | |
*If an even number of negative integers are multiplied or divided, the
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product is positive. If an odd number of negative integers are multiplied
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or divided, the product is negative.
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*To add two integers with the same sign, add their absolute values and
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give the sum of the sign that both numbers have
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* To add two integers with opposite signs, subtract the smaller absolute
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value from the greater absolute value and give the difference the sign of
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the number with the greater absolute value.
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Factor - CORRECT ANSWER✔✔-a factor of a whole number is the whole
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number that can be divided into it a whole number of times.
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Remember: every whole number has itself and 1 for factors. If those are
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the only two factors of a number its a prime number.
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Prime number - CORRECT ANSWER✔✔-a whole number that only has
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itself and 1 for factors.
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Prime factorization - CORRECT ANSWER✔✔-a representation of the
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number as a product of all its prime factors.
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, greatest common factor vs least common multiple - CORRECT
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ANSWER✔✔-GCF: greatest factor in common (20: 1, 2, 4, 5, 10, 20) | | | | | | | | | | |
LCM: lowest number in common and is a multiple instead of a factor. (3:
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3, 6, 9, 12...)
| | |
Exponent - CORRECT ANSWER✔✔-represents how many times a
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number is a factor. 2 = squared, 3 = cubed
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Square root - CORRECT ANSWER✔✔-a way to find what has to be
| | | | | | | | | | | |
squared to get a number | | | |
Numerator and Denominator - CORRECT ANSWER✔✔-N: integer on the
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top of the fraction
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D: integer of the bottom of the fraction
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Ratio - CORRECT ANSWER✔✔-A comparison of two quantities
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Mixed Number - CORRECT ANSWER✔✔-an integer followed by a
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fraction
Simplified - CORRECT ANSWER✔✔-it cannot be written with two
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integers with smaller absolute values. Written in the simplest form
| | | | | | | | | |
possible. |
CORRECT ANSWERS
Whole Numbers - CORRECT ANSWER✔✔-0 and go on forever: 1, 2, 3
| | | | | | | | | | | |
and so on. Each whole number is separated from the next by a quantity
| | | | | | | | | | | | | |
of 1
|
Partial Numbers - CORRECT ANSWER✔✔-Fractions and decimals; not
| | | | | | | |
whole numbers |
Positive and Negative numbers - CORRECT ANSWER✔✔-a negative
| | | | | | | |
number is the opposite of a positive number, and vice versa.
| | | | | | | | | |
Integers - CORRECT ANSWER✔✔-All the whole numbers and their
| | | | | | | | |
opposites. The only integer that doesn't have an opposite is 0
| | | | | | | | | |
Absolute Value - CORRECT ANSWER✔✔-an integer's positive distance
| | | | | | | |
from 0. It's value without a negative sign.
| | | | | | | |
Ex: |4| = 4 or |-4| = 4
| | | | | | |
,Working with integers - CORRECT ANSWER✔✔-* Subtracting an integer
| | | | | | | | |
is the same as adding its opposite, and adding a number is the same as
| | | | | | | | | | | | | | |
subtracting its opposite. | | |
*If an even number of negative integers are multiplied or divided, the
| | | | | | | | | | | |
product is positive. If an odd number of negative integers are multiplied
| | | | | | | | | | | |
or divided, the product is negative.
| | | | | |
*To add two integers with the same sign, add their absolute values and
| | | | | | | | | | | | |
give the sum of the sign that both numbers have
| | | | | | | | |
* To add two integers with opposite signs, subtract the smaller absolute
| | | | | | | | | | | |
value from the greater absolute value and give the difference the sign of
| | | | | | | | | | | |
the number with the greater absolute value.
| | | | | | |
Factor - CORRECT ANSWER✔✔-a factor of a whole number is the whole
| | | | | | | | | | | |
number that can be divided into it a whole number of times.
| | | | | | | | | | | |
Remember: every whole number has itself and 1 for factors. If those are
| | | | | | | | | | | |
the only two factors of a number its a prime number.
| | | | | | | | | | |
Prime number - CORRECT ANSWER✔✔-a whole number that only has
| | | | | | | | | |
itself and 1 for factors.
| | | |
Prime factorization - CORRECT ANSWER✔✔-a representation of the
| | | | | | | |
number as a product of all its prime factors.
| | | | | | | |
, greatest common factor vs least common multiple - CORRECT
| | | | | | | | |
ANSWER✔✔-GCF: greatest factor in common (20: 1, 2, 4, 5, 10, 20) | | | | | | | | | | |
LCM: lowest number in common and is a multiple instead of a factor. (3:
| | | | | | | | | | | | | |
3, 6, 9, 12...)
| | |
Exponent - CORRECT ANSWER✔✔-represents how many times a
| | | | | | | |
number is a factor. 2 = squared, 3 = cubed
| | | | | | | | |
Square root - CORRECT ANSWER✔✔-a way to find what has to be
| | | | | | | | | | | |
squared to get a number | | | |
Numerator and Denominator - CORRECT ANSWER✔✔-N: integer on the
| | | | | | | | |
top of the fraction
| | |
D: integer of the bottom of the fraction
| | | | | | |
Ratio - CORRECT ANSWER✔✔-A comparison of two quantities
| | | | | | |
Mixed Number - CORRECT ANSWER✔✔-an integer followed by a
| | | | | | | | |
fraction
Simplified - CORRECT ANSWER✔✔-it cannot be written with two
| | | | | | | | |
integers with smaller absolute values. Written in the simplest form
| | | | | | | | | |
possible. |
