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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. Number divisible by 2
Last digit divisible by 2
inverse property
variables
LCM is LCD

2. Comparing positive fractions
greatest
(Amount of increase/original whole) x100%
Greater spread in values
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

3. Able to be divided evenly (without a remainder)
divisible
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Divide out largest common factor
identity property

4. A letter that represents a value that may change
variables
whole number
order of operations
less than

5. Relationship in which a number is smaller than another
(Amount of increase/original whole) x100%
estimate
less than
Drop percent - move decimal point two place to left

6. Median
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Middle value
commutative property
Drop percent - move decimal point two place to left

7. Multiple-event probability
identity property
commutative property
Probability for each event then multiply individual probabilities together
Part

8. Number divisible by 9
square number
Sum of digits divisible by 9
value
(Amount of decrease/original whole) x100%

9. The greatest whole number that is a factor of two or more nonzero whole numbers
Divide out largest common factor
greatest common factor
denominator
repeating decimals

10. 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.
least common multiple
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
decimal
compensation

11. Two expressions that are set equal to each other; a number sentence with an equal sign
less than
divisible
equation
digit

12. 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)
Greater spread in values
digit
even number
associative property

13. Multiplying fractions
greatest
Reduce diagonally/vertically then multiply numerators and denominators
irrational numbers
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

14. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
odd
percent
factor
compatible numbers

15. Not identical or equivalent to
Number of decimal places is total number of decimals places in factors multiplied
Sum of values/number of values
estimate
not equal

16. 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)=
odd
Multiply by 100%
distributive property
terminating decimals

17. To place a fraction in lowest terms
proportion
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
simplify
Reduce diagonally/vertically then multiply numerators and denominators

18. Absolute value of number
not equal
Number w/o signs
compensation
simplify

19. In multiplication or addition - the order of two numbers may be switched around and the answer is the same. Ex: a+b = b+a. or (1x2) x 3=1x (2x3)
product
greatest common factor
commutative property
expanded form using exponents

20. To change a percent to a decimal
improper fraction
place value
prime number
Drop percent - move decimal point two place to left

21. Probability
Number of desired outcomes/number of total possible outcomes
irrational numbers
Last two digits divisible by 4
numerator

22. A set of operators - numbers - variables and grouping symbols; no equal sign
(Amount of increase/original whole) x100%
expression
Multiply by 100%
proportion

23. A number with more than two factors
compute
composite number
decimal
Multiply by 100%

24. Simplifying complex fractions: two methods
common denominator
terminating decimals
Probability for each event then multiply individual probabilities together
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

25. A number that results from multiplying a factor by itself
expanded form using exponents
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
improper fraction
square number

26. New whole
variables
Original whole +/- amount of change
compatible numbers
rational numbers

27. Average A per B
Number of decimal places is total number of decimals places in factors multiplied
odd number
Drop percent - move decimal point two place to left
Total A/total B

28. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
square number
equivalent
Middle value
compute

29. 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?
divisibility by 3 rule
sum
denominator
quotient

30. Percent increase
fraction
least
difference
(Amount of increase/original whole) x100%

31. Dividing fractions
Invert second term - then multiply
Line up decimal points
Number of desired outcomes/number of total possible outcomes
root numbers

32. A fraction whose numerator is greater than its denominator
value
improper fraction
least
factor

33. A number that is multiplied by another number to find a producr
numerator
factor
equivalent
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

34. Properties of 1 and -1

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35. Reducing fractions
(Amount of decrease/original whole) x100%
compensation
Divide out largest common factor
not equal

36. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
divisible
denominator
composite number
least common multiple

37. Properties of 0

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38. A line for representing and graphing numbers. Each point on the line corresponds to a number.
repeating decimals
composite number
number line
place value

39. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
greater than
odd
even number
Reduce diagonally/vertically then multiply numerators and denominators

40. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
least common multiple
odd number
digit
root numbers

41. Answer to a multiplication problem
expression
Total A/total B
equal
product

42. Percent decrease
identity property
factor pair
(Amount of decrease/original whole) x100%
Drop percent - move decimal point two place to left

43. Adding/subtracting decimals
common denominator
Line up decimal points
decimal
Multiply by 100%

44. Adding/subtracting fractions
Add zeros to decimals until all decimals have same number of digits
expanded form using exponents
LCM is LCD
odd number

45. 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
identity property
evaluate
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Value occurring most frequently

46. When a number is larger than the other number. Example 65 > 56
greater than
Number w/o signs
proportion
equivalent

47. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
place value
prime number
ratio
equivalent

48. Comparing decimal fractions
simplify
Add zeros to decimals until all decimals have same number of digits
proportion
compensation

49. To make a percent
Multiply by 100%
Middle value
Reduce diagonally/vertically then multiply numerators and denominators
Divide out largest common factor

50. To find the answer for; solve
Part
root numbers
evaluate
difference