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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. The largest number in a group of numbers
Divide out largest common factor
Last digit divisible by 2
greatest
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

2. Number divisible by 6
difference
(Amount of increase/original whole) x100%
whole number
Divisible by 2 and 3

3. When a number is larger than the other number. Example 65 > 56
not equal
commutative property
divisible
greater than

4. Average value
odd number
Sum of values/number of values
Original whole +/- amount of change
constants

5. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
order of operations
sum
least common multiple
proportion

6. Two factors together that are multiplied to equal a larger number.
factor pair
commutative property
Probability for each event then multiply individual probabilities together
terminating decimals

7. 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)=
percent
ratio
divisible
distributive property

8. 1/5 + 1/4=4/20 +5/20 and 20 is the...
less than
common denominator
terminating decimals
Invert second term - then multiply

9. A shortcut for writing repeated multiplication
commutative property
Drop percent - move decimal point two place to left
exponents
Sum of digits divisible by 3

10. A value that does not change; any number
constants
Sum of values/number of values
even
composite number

11. Two expressions that are set equal to each other; a number sentence with an equal sign
Sum of digits divisible by 3
equation
variables
least common multiple

12. Multiple-event probability
1 dividing by number
Divide out largest common factor
Probability for each event then multiply individual probabilities together
whole number

13. Adding/subtracting decimals
compensation
Last digit 0 or 5
variables
Line up decimal points

14. Choosing numbers close to the numbers in a problem - and then adjusting the answer to compensate for the numbers chosen - E.g. 23 + 18 and 23+20=43 Since 2 was added to 18 to make 20 - we need to take 2 away from 43.
greater than
whole number
Number of desired outcomes/number of total possible outcomes
compensation

15. Relationship in which a number is smaller than another
product
less than
proportion
Sum of digits divisible by 9

16. Probability
Number of desired outcomes/number of total possible outcomes
ratio
divisibility by 3 rule
proportion

17. Comparing positive fractions
common denominator
even number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
quotient

18. Number divisible by 9
simplify
Sum of digits divisible by 9
Multiply by 100%
sum

19. The answer to a multiplication problem
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Number w/o signs
Greater spread in values
product

20. Number divisible by 3
difference
Value occurring most frequently
percent
Sum of digits divisible by 3

21. A number with one or more digits to the right of the decimal point - E.g. .33
Number of decimal places is total number of decimals places in factors multiplied
fraction
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
decimal

22. The smallest number in a group of numbers
digit
greatest common factor
equal
least

23. 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
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
inverse property
rational numbers
divisible

24. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
even number
repeating decimals
Number of desired outcomes/number of total possible outcomes
square number

25. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Original whole +/- amount of change
divisibility by 3 rule
estimate

26. To place a fraction in lowest terms
constants
Last digit 0 or 5
odd
simplify

27. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
(Amount of increase/original whole) x100%
rational numbers
prime number
range

28. A letter that represents a value that may change
equivalent
square number
exponents
variables

29. Standard deviation: greater if...
Line up decimal points
associative property
square number
Greater spread in values

30. Number divisible by 5
greatest
even number
Last digit 0 or 5
greatest common factor

31. A number that results from multiplying a factor by itself
square number
Number of decimal places is total number of decimals places in factors multiplied
mixed number
Part

32. Percent decrease
Middle value
Divisible by 2 and 3
Part
(Amount of decrease/original whole) x100%

33. Properties of 1 and -1

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34. Not identical or equivalent to
root numbers
denominator
product
not equal

35. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
divisibility by 3 rule
terminating decimals
estimate
even

36. Dividing decimals
equal
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Sum of digits divisible by 9

37. Properties of numbers btw -1 and 1

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38. A number made up of a whole number and a fraction
Add zeros to decimals until all decimals have same number of digits
mixed number
Value occurring most frequently
even number

39. The answer to a subtraction problem
percent
exponents
irrational numbers
difference

40. How much a number is worth
least
Invert second term - then multiply
Part
value

41. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
factor
identity property
denominator

42. Adding/subtracting fractions
terminating decimals
even
Greater spread in values
LCM is LCD

43. A set of operators - numbers - variables and grouping symbols; no equal sign
simplify
Number w/o signs
Invert second term - then multiply
expression

44. Mode
Add zeros to decimals until all decimals have same number of digits
order of operations
prime factorization
Value occurring most frequently

45. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
expanded form using exponents
order of operations
factor
distributive property

46. Cannot be expressed in the form a/b. Include square roots of whole numbers that are not perfect squares and non terminating decimals that do not repeat. pi
Total A/total B
irrational numbers
identity property
difference

47. Average A per B
Last digit divisible by 2
Total A/total B
Divisible by 2 and 3
factor

48. A number that is multiplied by another number to find a producr
inverse property
factor
number line
simplify

49. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
improper fraction
repeating decimals
Number of decimal places is total number of decimals places in factors multiplied
simplify

50. The greatest whole number that is a factor of two or more nonzero whole numbers
perfect square
whole number
greatest common factor
ratio