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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
exponents
mixed number
prime number
Number of desired outcomes/number of total possible outcomes

2. Absolute value of number
even number
Multiply by 100%
compatible numbers
Number w/o signs

3. Properties of 0

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4. How much a number is worth
odd number
repeating decimals
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
value

5. Number divisible by 4
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
factor
Last two digits divisible by 4

6. The expression of a number as a product of prime factors; use a factor tree!
rational numbers
even
Sum of digits divisible by 9
prime factorization

7. Mode
number line
greater than
odd number
Value occurring most frequently

8. A set of operators - numbers - variables and grouping symbols; no equal sign
terminating decimals
irrational numbers
Value occurring most frequently
expression

9. Simplifying complex fractions: two methods
Divide by 100%
product
Last digit divisible by 2
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

10. odd + even
odd
sum
equal
decimal

11. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
Probability for each event then multiply individual probabilities together
expanded form using exponents
square number
product

12. 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
divisibility by 3 rule
identity property
Middle value
exponents

13. Comparing decimal fractions
identity property
Number w/o signs
common denominator
Add zeros to decimals until all decimals have same number of digits

14. The answer to an addition problem
factor pair
Sum of values/number of values
mixed number
sum

15. New whole
Original whole +/- amount of change
decimal
evaluate
Number of desired outcomes/number of total possible outcomes

16. Properties of 1 and -1

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17. Median
Sum of digits divisible by 9
Number w/o signs
ratio
Middle value

18. Number divisible by 6
common denominator
Last digit divisible by 2
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
Divisible by 2 and 3

19. A fraction out of 100 - %
Line up decimal points
1 dividing by number
expression
percent

20. A comparison of 2 numbers; one form is a fraction
Greater spread in values
ratio
odd
divisible

21. Answer to a multiplication problem
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
product
greater than
distributive property

22. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
least common multiple
fraction
Last digit divisible by 2
rational numbers

23. A number made up of a whole number and a fraction
numerator
mixed number
even
composite number

24. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
equivalent
(Amount of increase/original whole) x100%
LCM is LCD
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

25. When a number is larger than the other number. Example 65 > 56
Greater spread in values
inverse property
greater than
Sum of digits divisible by 9

26. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Part
common denominator
ratio
constants

27. A value that does not change; any number
variables
constants
Last digit divisible by 2
Number w/o signs

28. A number with more than two factors
Last digit divisible by 2
numerator
ratio
composite number

29. Able to be divided evenly (without a remainder)
divisible
equation
place value
prime factorization

30. Multiple-event probability
even number
Number of desired outcomes/number of total possible outcomes
Probability for each event then multiply individual probabilities together
Number of decimal places is total number of decimals places in factors multiplied

31. A letter that represents a value that may change
variables
Multiply by 100%
place value
factor

32. Two factors together that are multiplied to equal a larger number.
Invert second term - then multiply
odd number
difference
factor pair

33. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Multiply by 100%
decimal
place value
Total A/total B

34. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
sum
Sum of digits divisible by 3
variables
order of operations

35. 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?
Divisible by 2 and 3
Line up decimal points
denominator
Divide out largest common factor

36. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
compute
Divide out largest common factor
digit
Add zeros to decimals until all decimals have same number of digits

37. 8x8=64 What is 64?
Divide by 100%
estimate
perfect square
factor pair

38. A line for representing and graphing numbers. Each point on the line corresponds to a number.
product
divisibility by 3 rule
number line
rational numbers

39. To find the answer for; solve
evaluate
prime number
product
order of operations

40. Not identical or equivalent to
value
prime factorization
product
not equal

41. Relationship in which a number is smaller than another
simplify
digit
less than
equation

42. Adding/subtracting fractions
Greater spread in values
LCM is LCD
Last two digits divisible by 4
Multiply by 100%

43. A fraction whose numerator is greater than its denominator
even number
improper fraction
product
(Amount of increase/original whole) x100%

44. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
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
inverse property
Middle value

45. Multiplying decimals
decimal
Number of decimal places is total number of decimals places in factors multiplied
Last digit divisible by 2
Total A/total B

46. The smallest number in a group of numbers
constants
least
equal
even

47. Reducing fractions
Drop percent - move decimal point two place to left
variables
terminating decimals
Divide out largest common factor

48. A number with one or more digits to the right of the decimal point - E.g. .33
Reduce diagonally/vertically then multiply numerators and denominators
decimal
repeating decimals
proportion

49. To place a fraction in lowest terms
range
simplify
prime number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

50. To drop a percent
percent
Divide by 100%
Total A/total B
greater than