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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 5
Sum of values/number of values
Last digit 0 or 5
not equal
compute

2. Reciprocal of number
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
1 dividing by number
(Amount of increase/original whole) x100%
greatest common factor

3. To change a percent to a decimal
exponents
Probability for each event then multiply individual probabilities together
Drop percent - move decimal point two place to left
greatest

4. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
value
greater than
common denominator
order of operations

5. Able to be divided evenly (without a remainder)
greatest common factor
Last digit 0 or 5
number line
divisible

6. Multiplying fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Reduce diagonally/vertically then multiply numerators and denominators
(Amount of increase/original whole) x100%
compute

7. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
exponents
compatible numbers
whole number
distributive property

8. How much a number is worth
sum
value
Add zeros to decimals until all decimals have same number of digits
identity property

9. Reducing fractions
Divide out largest common factor
whole number
estimate
difference

10. Average value
Divisible by 2 and 3
Sum of values/number of values
greatest common factor
equation

11. Two factors together that are multiplied to equal a larger number.
factor pair
numerator
inverse property
expression

12. The difference between the greatest and the least numbers in a set of data.
odd number
expression
range
proportion

13. A number that is multiplied by another number to find a producr
value
least
factor
composite number

14. The answer to an addition problem
sum
inverse property
factor
digit

15. Relationship in which a number is smaller than another
divisibility by 3 rule
range
fraction
less than

16. A number with more than two factors
(Amount of increase/original whole) x100%
exponents
composite number
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

17. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
divisibility by 3 rule
compatible numbers
Drop percent - move decimal point two place to left
expanded form using exponents

18. A comparison of 2 numbers; one form is a fraction
1 dividing by number
ratio
perfect square
Last digit 0 or 5

19. Properties of 1 and -1

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20. A number made up of a whole number and a fraction
simplify
mixed number
expanded form using exponents
Line up decimal points

21. To perform a calculation - E.g. 2+2=4
percent
composite number
compute
odd

22. A letter that represents a value that may change
expression
variables
terminating decimals
Total A/total B

23. A fraction out of 100 - %
digit
fraction
greatest
percent

24. 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?
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
numerator
less than
even number

25. Comparing decimal fractions
Multiply by 100%
Total A/total B
Add zeros to decimals until all decimals have same number of digits
product

26. Dividing fractions
Invert second term - then multiply
ratio
identity property
Part

27. To find the answer for; solve
evaluate
range
Number of decimal places is total number of decimals places in factors multiplied
square number

28. odd + even
odd
fraction
range
equation

29. Simplifying complex fractions: two methods
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Number of desired outcomes/number of total possible outcomes
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
1 dividing by number

30. Percent increase
(Amount of increase/original whole) x100%
Middle value
Add zeros to decimals until all decimals have same number of digits
Sum of digits divisible by 3

31. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
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
variables
order of operations

32. An equation showing 2 ratios are equal
sum
denominator
Number of decimal places is total number of decimals places in factors multiplied
proportion

33. Number divisible by 6
value
constants
commutative property
Divisible by 2 and 3

34. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
place value
percent
variables
repeating decimals

35. The answer to a subtraction problem
1 dividing by number
odd
difference
divisible

36. Not identical or equivalent to
not equal
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
percent
Last two digits divisible by 4

37. Properties of 0

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38. A number that results from multiplying a factor by itself
Sum of values/number of values
evaluate
square number
root numbers

39. Properties of numbers btw -1 and 1

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40. The smallest number in a group of numbers
whole number
rational numbers
least
Middle value

41. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
place value
digit
prime factorization
Value occurring most frequently

42. Number divisible by 2
Sum of digits divisible by 9
variables
Last digit divisible by 2
Middle value

43. Answer to a division problem
improper fraction
Number w/o signs
decimal
quotient

44. A line for representing and graphing numbers. Each point on the line corresponds to a number.
number line
decimal
Greater spread in values
greatest

45. The expression of a number as a product of prime factors; use a factor tree!
Drop percent - move decimal point two place to left
prime factorization
Sum of digits divisible by 3
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

46. To place a fraction in lowest terms
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
terminating decimals
simplify
least

47. Dividing decimals
rational numbers
Reduce diagonally/vertically then multiply numerators and denominators
perfect square
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

48. A set of operators - numbers - variables and grouping symbols; no equal sign
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
expression
least
Greater spread in values

49. New whole
identity property
Number w/o signs
Original whole +/- amount of change
distributive property

50. Adding/subtracting decimals
Line up decimal points
difference
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
Middle value