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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 is multiplied by another number to find a producr
root numbers
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
factor
Original whole +/- amount of change

2. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Multiply by 100%
compensation
1 dividing by number
common denominator

3. Simplifying complex fractions: two methods
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
expanded form using exponents
equation
LCM is LCD

4. Able to be divided evenly (without a remainder)
divisible
1 dividing by number
Greater spread in values
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

5. Percent x whole
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
divisibility by 3 rule
Value occurring most frequently
Part

6. Number divisible by 3
constants
repeating decimals
associative property
Sum of digits divisible by 3

7. To change a percent to a decimal
least
ratio
Drop percent - move decimal point two place to left
product

8. Multiplying fractions
Line up decimal points
equation
Divide out largest common factor
Reduce diagonally/vertically then multiply numerators and denominators

9. The greatest whole number that is a factor of two or more nonzero whole numbers
greatest common factor
even number
factor pair
greater than

10. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
greatest common factor
equal
Probability for each event then multiply individual probabilities together
least common multiple

11. In 4x4=16 - what is 4?
square number
numerator
root numbers
commutative property

12. Not identical or equivalent to
not equal
compatible numbers
Reduce diagonally/vertically then multiply numerators and denominators
terminating decimals

13. Absolute value of number
evaluate
Number w/o signs
sum
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

14. Number divisible by 9
Greater spread in values
perfect square
Sum of digits divisible by 9
factor

15. A fraction out of 100 - %
Last digit 0 or 5
ratio
less than
percent

16. 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
odd
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
Divide by 100%

17. Comparing positive fractions
decimal
expression
identity property
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

18. A number with one or more digits to the right of the decimal point - E.g. .33
Divide out largest common factor
not equal
Sum of values/number of values
decimal

19. A line for representing and graphing numbers. Each point on the line corresponds to a number.
associative property
number line
factor
Divide by 100%

20. A number with more than two factors
composite number
divisibility by 3 rule
numerator
compensation

21. New whole
Original whole +/- amount of change
not equal
Value occurring most frequently
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

22. odd + odd
numerator
Line up decimal points
equivalent
even

23. Natural Numbers - Whole Numbers - Integers - Rational Numbers
Total A/total B
distributive property
associative property
rational numbers

24. The difference between the greatest and the least numbers in a set of data.
simplify
range
sum
expression

25. To drop a percent
divisible
Divide by 100%
Original whole +/- amount of change
Sum of values/number of values

26. Number divisible by 5
square number
value
Last digit 0 or 5
Sum of values/number of values

27. Probability
Divide out largest common factor
Number of desired outcomes/number of total possible outcomes
composite number
variables

28. Number divisible by 4
Last two digits divisible by 4
percent
odd number
quotient

29. 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
greatest
inverse property
(Amount of increase/original whole) x100%
quotient

30. How much a number is worth
value
(Amount of decrease/original whole) x100%
Total A/total B
Add zeros to decimals until all decimals have same number of digits

31. The answer to a subtraction problem
distributive property
Probability for each event then multiply individual probabilities together
difference
improper fraction

32. Relationship in which a number is smaller than another
expression
less than
Sum of digits divisible by 9
expanded form using exponents

33. To find the answer for; solve
Sum of digits divisible by 3
Greater spread in values
evaluate
difference

34. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
Sum of digits divisible by 9
associative property
fraction
divisibility by 3 rule

35. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
compatible numbers
whole number
Number w/o signs
expression

36. An equation showing 2 ratios are equal
associative property
Number w/o signs
Number of decimal places is total number of decimals places in factors multiplied
proportion

37. Be identical or equivalent to
equal
Probability for each event then multiply individual probabilities together
fraction
commutative property

38. 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)=
compensation
distributive property
inverse property
prime factorization

39. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
product
sum
Sum of digits divisible by 9
equivalent

40. Multiple-event probability
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Probability for each event then multiply individual probabilities together
composite number
exponents

41. A set of operators - numbers - variables and grouping symbols; no equal sign
not equal
inverse property
expression
Number w/o signs

42. Number divisible by 6
composite number
Divisible by 2 and 3
Number of desired outcomes/number of total possible outcomes
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

43. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
root numbers
order of operations
Greater spread in values
square number

44. 8x8=64 What is 64?
perfect square
Divisible by 2 and 3
greater than
Number of desired outcomes/number of total possible outcomes

45. A letter that represents a value that may change
Number of decimal places is total number of decimals places in factors multiplied
place value
estimate
variables

46. 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?
Value occurring most frequently
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
numerator
whole number

47. Properties of 1 and -1

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48. odd + even
product
odd
constants
sum

49. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
odd number
Line up decimal points
Reduce diagonally/vertically then multiply numerators and denominators
perfect square

50. A number that results from multiplying a factor by itself
square number
(Amount of increase/original whole) x100%
Line up decimal points
product