TExES Math Core 391 || Questions and Answers.
What are inverse operations correct answers Used to work backwards to solve problems In the
case that 7 and a number add to 18, the inverse operations of subtraction is used to find the
unknown value (18-7=11)
Addition and subtraction are inverse operations
What is a remainder in a division problem correct answers If a given total cannot be divided
evenly into a given number of groups, the amount left over is the remainder
How to convert a fraction to a decimal correct answers To convert a fraction to a decimal the
numerator is divided by denominator for example converted to a decimal by dividing 3 by 8
(3/8= 0.375
How to convert a decimal to a fraction correct answers The decimal point is dropped, and the
value is written as the numerator. The denominator is the place value farthest to the right with a
digit other than zero
.48 =48/100
How to convert a decimal to a percent correct answers The number is multiplied by 100
.13 =13%
How to convert a percent to a fraction correct answers Fraction is converted to a decimal and
then multiplied by 100
1/5=.20 (.20x100)=20%
, What are prime and composite numbers correct answers Whole numbers are classified as either
prime or composite
A prime number can only be divided evenly by itself and one.
What is a prime number correct answers A prime number can only be divided evenly by itself
and one.
Example: the number 11 is prime
What is a composite number correct answers A composite number is any whole number that is
not a prime number. A composite number is a number that can be divided evenly by one or more
numbers other than itself and one
Example : 4,8,9,10,12,14,15,16,18,20 are composite
What are factors correct answers factors of a number are all integers that can be multiplied by
another integer to produce the given numbers.
Example : 2 is multiplied by 3 to produce 6 (2x3=6)
2 and 3 are both factors of 6
What are multiplies correct answers Of a given number are found by taking that number and
multiplying it by any other whole number
Example: 6,9,12 are multiplies of 3
The multiplies of any number are an infinite list
What are inverse operations correct answers Used to work backwards to solve problems In the
case that 7 and a number add to 18, the inverse operations of subtraction is used to find the
unknown value (18-7=11)
Addition and subtraction are inverse operations
What is a remainder in a division problem correct answers If a given total cannot be divided
evenly into a given number of groups, the amount left over is the remainder
How to convert a fraction to a decimal correct answers To convert a fraction to a decimal the
numerator is divided by denominator for example converted to a decimal by dividing 3 by 8
(3/8= 0.375
How to convert a decimal to a fraction correct answers The decimal point is dropped, and the
value is written as the numerator. The denominator is the place value farthest to the right with a
digit other than zero
.48 =48/100
How to convert a decimal to a percent correct answers The number is multiplied by 100
.13 =13%
How to convert a percent to a fraction correct answers Fraction is converted to a decimal and
then multiplied by 100
1/5=.20 (.20x100)=20%
, What are prime and composite numbers correct answers Whole numbers are classified as either
prime or composite
A prime number can only be divided evenly by itself and one.
What is a prime number correct answers A prime number can only be divided evenly by itself
and one.
Example: the number 11 is prime
What is a composite number correct answers A composite number is any whole number that is
not a prime number. A composite number is a number that can be divided evenly by one or more
numbers other than itself and one
Example : 4,8,9,10,12,14,15,16,18,20 are composite
What are factors correct answers factors of a number are all integers that can be multiplied by
another integer to produce the given numbers.
Example : 2 is multiplied by 3 to produce 6 (2x3=6)
2 and 3 are both factors of 6
What are multiplies correct answers Of a given number are found by taking that number and
multiplying it by any other whole number
Example: 6,9,12 are multiplies of 3
The multiplies of any number are an infinite list
