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Number Sense Vocab

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
Greater spread in values
terminating decimals
fraction
root numbers

2. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
constants
least common multiple
Drop percent - move decimal point two place to left
common denominator

3. The bottom number in a fraction; tells how many parts a whole is divided into OR how many parts in a group - E.g. 2/4 and what position is the 4?
even
exponents
prime factorization
denominator

4. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
repeating decimals
identity property
Number of decimal places is total number of decimals places in factors multiplied
odd number

5. Number divisible by 6
greatest
Drop percent - move decimal point two place to left
sum
Divisible by 2 and 3

6. A letter that represents a value that may change
Greater spread in values
variables
Last digit 0 or 5
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

7. A fraction out of 100 - %
inverse property
percent
prime factorization
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

8. Percent increase
quotient
percent
(Amount of increase/original whole) x100%
compatible numbers

9. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Number w/o signs
place value
numerator
prime number

10. In multiplication or addition - the order of two numbers may be switched around and the answer is the same. Ex: a+b = b+a. or (1x2) x 3=1x (2x3)
Part
composite number
(Amount of decrease/original whole) x100%
commutative property

11. The answer to a subtraction problem
identity property
Original whole +/- amount of change
difference
compensation

12. To drop a percent
greatest
1 dividing by number
Number w/o signs
Divide by 100%

13. Probability
Number of desired outcomes/number of total possible outcomes
common denominator
divisible
commutative property

14. To find the answer for; solve
factor pair
greater than
evaluate
Multiplying/dividing number by 1 doesn't change number; multiplying/dividing number by -1 changes sign; sum of number of -1 times number is 0

15. 8x8=64 What is 64?
Probability for each event then multiply individual probabilities together
0 and 1: Reciprocal greater than number - square less than number - positive number's product smaller than number - negative number's product larger than number; -1 and 0: reciprocal less than number
Number of decimal places is total number of decimals places in factors multiplied
perfect square

16. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
evaluate
Divide by 100%
order of operations
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

17. A set of operators - numbers - variables and grouping symbols; no equal sign
equivalent
Greater spread in values
expression
factor pair

18. Average value
simplify
0 and 1: Reciprocal greater than number - square less than number - positive number's product smaller than number - negative number's product larger than number; -1 and 0: reciprocal less than number
Sum of values/number of values
improper fraction

19. The greatest whole number that is a factor of two or more nonzero whole numbers
Value occurring most frequently
greatest common factor
Line up decimal points
equation

20. Two factors together that are multiplied to equal a larger number.
factor pair
common denominator
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
place value

21. Dividing fractions
value
divisible
not equal
Invert second term - then multiply

22. A comparison of 2 numbers; one form is a fraction
number line
value
terminating decimals
ratio

23. A number that results from multiplying a factor by itself
square number
Drop percent - move decimal point two place to left
compute
expanded form using exponents

24. odd + odd
Probability for each event then multiply individual probabilities together
Original whole +/- amount of change
even
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

25. In 4x4=16 - what is 4?
Total A/total B
ratio
root numbers
number line

26. Number divisible by 9
compute
Divide out largest common factor
rational numbers
Sum of digits divisible by 9

27. The property which allows you to add a number's opposite to it and always get 0 - The relationship of addition to subtraction or multiplication to division
inverse property
order of operations
0 and 1: Reciprocal greater than number - square less than number - positive number's product smaller than number - negative number's product larger than number; -1 and 0: reciprocal less than number
sum

28. Answer to a division problem
Greater spread in values
even
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
quotient

29. Comparing positive fractions
Last digit divisible by 2
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Last digit 0 or 5
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

30. A property of real numbers that states that the sum or product of a set of numbers is the same - regardless of how the numbers are grouped - (a+b)+c=a+(b+c) - e.g. (1+2)+3=1+(2+3)
Last digit divisible by 2
associative property
whole number
repeating decimals

31. A number with one or more digits to the right of the decimal point - E.g. .33
compute
decimal
evaluate
proportion

32. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
even
greatest common factor
Middle value

33. Number divisible by 4
quotient
Divide by 100%
Last two digits divisible by 4
Line up decimal points

34. Percent decrease
compute
(Amount of decrease/original whole) x100%
Reduce diagonally/vertically then multiply numerators and denominators
exponents

35. The answer to an addition problem
sum
irrational numbers
factor pair
Probability for each event then multiply individual probabilities together

36. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
prime number
Line up decimal points
Multiply by 100%
number line

37. A value that does not change; any number
constants
identity property
prime number
whole number

38. The expression of a number as a product of prime factors; use a factor tree!
improper fraction
prime factorization
(Amount of increase/original whole) x100%
product

39. Two expressions that are set equal to each other; a number sentence with an equal sign
Original whole +/- amount of change
range
equation
least

40. To place a fraction in lowest terms
Number of decimal places is total number of decimals places in factors multiplied
Last two digits divisible by 4
simplify
numerator

41. Multiple-event probability
Drop percent - move decimal point two place to left
divisibility by 3 rule
Probability for each event then multiply individual probabilities together
number line

42. Standard deviation: greater if...
distributive property
greater than
Greater spread in values
Divisible by 2 and 3

43. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
Multiplying/dividing number by 1 doesn't change number; multiplying/dividing number by -1 changes sign; sum of number of -1 times number is 0
variables
equivalent
Original whole +/- amount of change

44. Dividing decimals
digit
Number w/o signs
compatible numbers
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

45. New whole
expression
even
denominator
Original whole +/- amount of change

46. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
Middle value
even number
mixed number
root numbers

47. To perform a calculation - E.g. 2+2=4
compute
inverse property
equivalent
identity property

48. Answer to a multiplication problem
least common multiple
(Amount of increase/original whole) x100%
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
product

49. When you add 0 to a number - or mulltiply a number by 1 - the result is the same number - e.g. Identity Property of Multiplication: 21x1=1x21=21 or 300x 1 = 300
Value occurring most frequently
(Amount of decrease/original whole) x100%
identity property
Middle value

50. The answer to a multiplication problem
constants
proportion
product
even number