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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 with one or more digits to the right of the decimal point - E.g. .33
associative property
decimal
prime number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

2. Multiplying fractions
equation
Original whole +/- amount of change
identity property
Reduce diagonally/vertically then multiply numerators and denominators

3. Adding/subtracting decimals
factor
common denominator
Line up decimal points
Probability for each event then multiply individual probabilities together

4. A fraction out of 100 - %
irrational numbers
Original whole +/- amount of change
value
percent

5. Number divisible by 3
commutative property
proportion
Sum of digits divisible by 3
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

6. Multiple-event probability
square 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
Probability for each event then multiply individual probabilities together

7. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
place value
compensation
divisible
root numbers

8. A line for representing and graphing numbers. Each point on the line corresponds to a number.
constants
Probability for each event then multiply individual probabilities together
repeating decimals
number line

9. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
divisibility by 3 rule
compatible numbers
greatest
divisible

10. Two factors together that are multiplied to equal a larger number.
factor pair
Number of decimal places is total number of decimals places in factors multiplied
Probability for each event then multiply individual probabilities together
repeating decimals

11. 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)
equivalent
sum
associative property
constants

12. Comparing positive fractions
value
odd
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
1 dividing by number

13. Properties of 1 and -1

14. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
compensation
terminating decimals
exponents
Drop percent - move decimal point two place to left

15. A comparison of 2 numbers; one form is a fraction
compute
product
constants
ratio

16. Number divisible by 4
perfect square
sum
Last two digits divisible by 4
irrational numbers

17. Dividing fractions
Number of decimal places is total number of decimals places in factors multiplied
rational numbers
odd number
Invert second term - then multiply

18. Not identical or equivalent to
not equal
(Amount of increase/original whole) x100%
repeating decimals
Last two digits divisible by 4

19. Standard deviation: greater if...
Invert second term - then multiply
mixed number
divisible
Greater spread in values

20. A number that results from multiplying a factor by itself
(Amount of decrease/original whole) x100%
square number
range
Last digit divisible by 2

21. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
commutative property
percent
perfect square
expanded form using exponents

22. Probability
Number of desired outcomes/number of total possible outcomes
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
whole number
Invert second term - then multiply

23. To drop a percent
product
Last digit divisible by 2
Divide by 100%
commutative property

24. The largest number in a group of numbers
proportion
greatest
number line
less than

25. A number with more than two factors
common denominator
composite number
terminating decimals
compute

26. 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?
numerator
square number
Number of desired outcomes/number of total possible outcomes
Sum of digits divisible by 3

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
product
equation
less than

28. To make a percent
Multiply by 100%
Line up decimal points
irrational numbers
sum

29. How much a number is worth
equation
(Amount of decrease/original whole) x100%
product
value

30. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
Divisible by 2 and 3
constants
Number w/o signs
order of operations

31. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
repeating decimals
Divide out largest common factor
factor
Multiply by 100%

32. Comparing decimal fractions
Add zeros to decimals until all decimals have same number of digits
Last two digits divisible by 4
Multiply by 100%
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

33. 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
greatest common factor
Last two digits divisible by 4
factor pair
identity property

34. Be identical or equivalent to
difference
equal
quotient
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

35. A value that does not change; any number
LCM is LCD
distributive property
constants
identity property

36. Properties of 0

37. To change a percent to a decimal
Drop percent - move decimal point two place to left
prime factorization
less than
Sum of digits divisible by 3

38. To find the answer for; solve
Last digit 0 or 5
evaluate
compute
Total A/total B

39. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
divisibility by 3 rule
odd
product
Original whole +/- amount of change

40. A number that is multiplied by another number to find a producr
factor
exponents
evaluate
factor pair

41. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
repeating decimals
place value
Last digit divisible by 2

42. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
ratio
proportion
evaluate
fraction

43. To find a number that is close to an exact answer - E.g. 23+24 is around 50
estimate
sum
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
Part

44. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
fraction
Probability for each event then multiply individual probabilities together
odd number
compute

45. Two expressions that are set equal to each other; a number sentence with an equal sign
common denominator
equation
root numbers
estimate

46. An equation showing 2 ratios are equal
decimal
product
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
proportion

47. Relationship in which a number is smaller than another
divisibility by 3 rule
less than
Probability for each event then multiply individual probabilities together
(Amount of increase/original whole) x100%

48. Reciprocal of number
1 dividing by number
order of operations
Last digit 0 or 5
Divisible by 2 and 3

49. 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?
quotient
least common multiple
Number of desired outcomes/number of total possible outcomes
denominator

50. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
Add zeros to decimals until all decimals have same number of digits
square number
Invert second term - then multiply