Teacher Test NES Math| 135 questions| with complete solutions

: When adding two numbers, the sum is the same regardless of the order in which the numbers are added is called the _______________ property. Example: 2 + 3 = 3 + 2 correct answer: Commutative Property When adding three or more numbers, the sum is the same regardless of the way in which the numbers are grouped is called the ________________ property. Example: 2 + (3 + 5) = (2 + 3) + 5 correct answer: Associative Property Adding zero to a number does not change it is called the ____________ property. Example: 2 + 0 = 2 correct answer: Identity Property There are three basic properties of multiplication. Name at least two of them. correct answer: Commutative, Associative, Identity Repeated multiplication is called ______________. correct answer: Exponentiation. An exponent is often called a power. A negative exponent indicates a reciprocal. Give an example correct answer: 2-2 (-2nd power) =1/4 (1 / 2X2) OR 2-3 (-3rd power) = 1/8 (1 / 2X2X2) The first power of any number is _________ ex. 21 correct answer: That number itself How do you convert a fraction to a decimal? correct answer: Divide the numerator by the denominator What is the definition of a prime number? correct answer: A number that is divisible only by itself and 1 An even number plus an even number is always __________? correct answer: Even An even number plus an odd number is always ______? correct answer: Odd An odd number plus an odd number is always __________? correct answer: Even What is the Fibonacci Sequence? correct answer: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34... Beginning with zero and one so that each term beginning with the third term is the sum of two preceding terms Name the first ten numbers in the Sequence of Squares. correct answer: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100 What are constants in mathematical expressions