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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. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
estimate
order of operations
Sum of values/number of values
number line

2. A line for representing and graphing numbers. Each point on the line corresponds to a number.
number line
Value occurring most frequently
proportion
prime number

3. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
equal
proportion
even number
expanded form using exponents

4. The answer to a multiplication problem
Divide out largest common factor
product
Total A/total B
Last digit 0 or 5

5. Multiplying decimals
improper fraction
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Number of decimal places is total number of decimals places in factors multiplied
least common multiple

6. A number that is multiplied by another number to find a producr
Reduce diagonally/vertically then multiply numerators and denominators
value
Last digit divisible by 2
factor

7. To make a percent
least common multiple
Multiply by 100%
repeating decimals
equivalent

8. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
Original whole +/- amount of change
expanded form using exponents
associative property
Number of decimal places is total number of decimals places in factors multiplied

9. A letter that represents a value that may change
order of operations
least common multiple
variables
numerator

10. A number with more than two factors
equivalent
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
composite number
common denominator

11. Properties of numbers btw -1 and 1

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12. 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)=
least
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
distributive property
even

13. A set of operators - numbers - variables and grouping symbols; no equal sign
square number
expression
greater than
Reduce diagonally/vertically then multiply numerators and denominators

14. To find the answer for; solve
percent
evaluate
Value occurring most frequently
Line up decimal points

15. A number with one or more digits to the right of the decimal point - E.g. .33
decimal
Invert second term - then multiply
irrational numbers
(Amount of decrease/original whole) x100%

16. Standard deviation: greater if...
product
Last two digits divisible by 4
Drop percent - move decimal point two place to left
Greater spread in values

17. A fraction whose numerator is greater than its denominator
improper fraction
(Amount of decrease/original whole) x100%
least
expression

18. New whole
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
Original whole +/- amount of change
variables
Multiply by 100%

19. To perform a calculation - E.g. 2+2=4
place value
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
compute
estimate

20. Number divisible by 4
compensation
prime factorization
Last two digits divisible by 4
numerator

21. Be identical or equivalent to
greater than
Middle value
equal
Last two digits divisible by 4

22. Percent increase
sum
(Amount of increase/original whole) x100%
even
least common multiple

23. Median
Sum of values/number of values
LCM is LCD
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Middle value

24. A comparison of 2 numbers; one form is a fraction
ratio
Add zeros to decimals until all decimals have same number of digits
Reduce diagonally/vertically then multiply numerators and denominators
repeating decimals

25. Number divisible by 6
Sum of digits divisible by 3
Invert second term - then multiply
compatible numbers
Divisible by 2 and 3

26. Reciprocal of number
even number
prime number
1 dividing by number
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

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

28. Not identical or equivalent to
not equal
commutative property
whole number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

29. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
divisibility by 3 rule
compatible numbers
Multiply by 100%
distributive property

30. 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?
denominator
Divisible by 2 and 3
Middle value
Invert second term - then multiply

31. 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
Greater spread in values
simplify
divisible

32. Number divisible by 9
rational numbers
compute
Sum of digits divisible by 9
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

33. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
Last digit 0 or 5
range
least

34. Reducing fractions
1 dividing by number
Last digit divisible by 2
Divide out largest common factor
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

35. Mode
equation
product
1 dividing by number
Value occurring most frequently

36. odd + even
repeating decimals
evaluate
odd
proportion

37. Number divisible by 5
Invert second term - then multiply
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
Last digit 0 or 5
numerator

38. Properties of 0

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39. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
Last digit divisible by 2
prime number
distributive property
least

40. How much a number is worth
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
expanded form using exponents
value
evaluate

41. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
compatible numbers
1 dividing by number
commutative property
Number of desired outcomes/number of total possible outcomes

42. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
prime number
order of operations
Total A/total B

43. Able to be divided evenly (without a remainder)
even
value
Last digit 0 or 5
divisible

44. The greatest whole number that is a factor of two or more nonzero whole numbers
1 dividing by number
divisibility by 3 rule
greatest common factor
proportion

45. A number that results from multiplying a factor by itself
irrational numbers
square number
least
Sum of digits divisible by 9

46. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
greater than
odd 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
product

47. The smallest number in a group of numbers
commutative property
greatest common factor
repeating decimals
least

48. Percent x whole
least
Part
Drop percent - move decimal point two place to left
Value occurring most frequently

49. Properties of 1 and -1

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50. Comparing decimal fractions
Drop percent - move decimal point two place to left
Add zeros to decimals until all decimals have same number of digits
even
proportion