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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. Probability
difference
Number of desired outcomes/number of total possible outcomes
product
prime number

2. Median
Middle value
decimal
even
estimate

3. A comparison of 2 numbers; one form is a fraction
ratio
odd number
Add zeros to decimals until all decimals have same number of digits
inverse property

4. A line for representing and graphing numbers. Each point on the line corresponds to a number.
number line
estimate
Number of decimal places is total number of decimals places in factors multiplied
associative property

5. Two factors together that are multiplied to equal a larger number.
compensation
whole number
(Amount of increase/original whole) x100%
factor pair

6. odd + odd
compensation
prime factorization
perfect square
even

7. Mode
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Value occurring most frequently
least
Number w/o signs

8. Natural Numbers - Whole Numbers - Integers - Rational Numbers
percent
rational numbers
greater than
exponents

9. The number at the top of a fraction; stands for the parts of a set you are considering - E.g. 3/4 What position is 3?
compensation
numerator
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
identity property

10. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
Sum of digits divisible by 3
greater than
root numbers

11. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
greatest
least
Greater spread in values
whole number

12. 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)
divisibility by 3 rule
equation
factor
commutative property

13. A fraction whose numerator is greater than its denominator
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
compatible numbers
improper fraction
constants

14. Simplifying complex fractions: two methods
greater than
not equal
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

15. Number divisible by 9
Sum of digits divisible by 9
sum
repeating decimals
associative property

16. A number made up of a whole number and a fraction
denominator
Drop percent - move decimal point two place to left
evaluate
mixed number

17. Adding/subtracting fractions
odd number
LCM is LCD
compatible numbers
composite number

18. Answer to a multiplication problem
Original whole +/- amount of change
equivalent
product
associative property

19. Number divisible by 5
range
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Last digit 0 or 5
Divide out largest common factor

20. Adding/subtracting decimals
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
commutative property
Sum of digits divisible by 9
Line up decimal points

21. To place a fraction in lowest terms
compensation
Divide out largest common factor
simplify
irrational numbers

22. New whole
greatest common factor
Original whole +/- amount of change
odd
greater than

23. Properties of numbers btw -1 and 1

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24. The difference between the greatest and the least numbers in a set of data.
irrational numbers
fraction
range
percent

25. A property indicating a special way in which multiplication is applied to addition of two or more numbers in which each term inside a set of parentheses can be multiplied by a factor outside the parentheses - such as a(b + c) = ab + ac - or 7x (4+1)=
identity property
decimal
distributive property
associative property

26. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
least common multiple
Number of decimal places is total number of decimals places in factors multiplied
perfect square
Number of desired outcomes/number of total possible outcomes

27. 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
denominator
whole number
numerator

28. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
percent
odd number
not equal
even number

29. A number with one or more digits to the right of the decimal point - E.g. .33
decimal
even
Drop percent - move decimal point two place to left
root numbers

30. Multiplying decimals
commutative property
Part
Add zeros to decimals until all decimals have same number of digits
Number of decimal places is total number of decimals places in factors multiplied

31. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
Number of desired outcomes/number of total possible outcomes
prime number
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 digits divisible by 9

32. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Multiply by 100%
terminating decimals
Part
1 dividing by number

33. Average A per B
Divide by 100%
repeating decimals
Total A/total B
quotient

34. Relationship in which a number is smaller than another
less than
divisibility by 3 rule
LCM is LCD
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

35. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
Drop percent - move decimal point two place to left
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
repeating decimals
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

36. The expression of a number as a product of prime factors; use a factor tree!
exponents
divisible
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
prime factorization

37. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
percent
product
repeating decimals

38. Percent decrease
prime number
number line
(Amount of decrease/original whole) x100%
identity property

39. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
Sum of values/number of values
root numbers
Number of desired outcomes/number of total possible outcomes

40. Standard deviation: greater if...
(Amount of decrease/original whole) x100%
Greater spread in values
less than
Multiply by 100%

41. Properties of 0

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42. Number divisible by 4
Middle value
place value
equation
Last two digits divisible by 4

43. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
Total A/total B
Last two digits divisible by 4
divisibility by 3 rule
prime number

44. Percent x whole
(Amount of increase/original whole) x100%
Part
Add zeros to decimals until all decimals have same number of digits
Last digit 0 or 5

45. 1/5 + 1/4=4/20 +5/20 and 20 is the...
LCM is LCD
divisibility by 3 rule
common denominator
denominator

46. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
least
composite number
factor

47. An equation showing 2 ratios are equal
proportion
greatest
root numbers
equivalent

48. Able to be divided evenly (without a remainder)
divisible
expression
Number of decimal places is total number of decimals places in factors multiplied
evaluate

49. The answer to a multiplication problem
whole number
commutative property
product
proportion

50. Number divisible by 2
prime factorization
Probability for each event then multiply individual probabilities together
Last digit divisible by 2
Sum of digits divisible by 9