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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. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
place value
fraction
greatest
quotient

2. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
Multiply by 100%
perfect square
square number

3. Properties of 0

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4. Answer to a multiplication problem
order of operations
product
divisibility by 3 rule
difference

5. Absolute value of number
greater than
less than
Number w/o signs
fraction

6. 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)
associative property
difference
evaluate
Probability for each event then multiply individual probabilities together

7. Cannot be expressed in the form a/b. Include square roots of whole numbers that are not perfect squares and non terminating decimals that do not repeat. pi
irrational numbers
variables
numerator
square number

8. Dividing decimals
Number of decimal places is total number of decimals places in factors multiplied
mixed number
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
rational numbers

9. When a number is larger than the other number. Example 65 > 56
odd number
expression
not equal
greater than

10. A line for representing and graphing numbers. Each point on the line corresponds to a number.
distributive property
Greater spread in values
identity property
number line

11. A fraction out of 100 - %
factor
divisibility by 3 rule
percent
irrational numbers

12. 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
not equal
prime factorization
inverse property
Middle value

13. odd + odd
variables
prime factorization
LCM is LCD
even

14. Number divisible by 5
square number
order of operations
Last digit 0 or 5
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

15. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
greatest common factor
compute
Sum of digits divisible by 9

16. Percent decrease
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
inverse property
(Amount of decrease/original whole) x100%
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

17. 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?
least
rational numbers
denominator
Divide out largest common factor

18. Relationship in which a number is smaller than another
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Probability for each event then multiply individual probabilities together
less than
constants

19. Number divisible by 9
Last digit divisible by 2
mixed number
Sum of digits divisible by 9
exponents

20. 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)
Multiply by 100%
Number w/o signs
commutative property
1 dividing by number

21. Properties of numbers btw -1 and 1

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22. How much a number is worth
Multiply by 100%
value
prime factorization
Probability for each event then multiply individual probabilities together

23. In 4x4=16 - what is 4?
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
square number
root numbers
place value

24. Number divisible by 2
greater than
denominator
Last digit divisible by 2
range

25. Be identical or equivalent to
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
expanded form using exponents
composite number

26. A number with one or more digits to the right of the decimal point - E.g. .33
decimal
whole number
Last digit 0 or 5
ratio

27. To place a fraction in lowest terms
compatible numbers
simplify
digit
irrational numbers

28. An equation showing 2 ratios are equal
Probability for each event then multiply individual probabilities together
numerator
proportion
ratio

29. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
Number of decimal places is total number of decimals places in factors multiplied
greater than
Probability for each event then multiply individual probabilities together
even number

30. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
terminating decimals
fraction
root numbers
Divide out largest common factor

31. The answer to a subtraction problem
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
difference
number line
quotient

32. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
product
composite number
least common multiple
equivalent

33. The smallest number in a group of numbers
Original whole +/- amount of change
least
square number
simplify

34. A number with more than two factors
simplify
factor
composite number
not equal

35. A letter that represents a value that may change
distributive property
Number of decimal places is total number of decimals places in factors multiplied
variables
evaluate

36. To drop a percent
factor pair
Divide by 100%
prime factorization
LCM is LCD

37. Reducing fractions
(Amount of decrease/original whole) x100%
distributive property
Divide out largest common factor
equivalent

38. The largest number in a group of numbers
sum
greatest
digit
divisible

39. 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
compute
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
greatest

40. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
prime number
Multiply by 100%
greater than
less than

41. Average A per B
Divisible by 2 and 3
Sum of digits divisible by 9
percent
Total A/total B

42. odd + even
sum
Drop percent - move decimal point two place to left
least common multiple
odd

43. Percent increase
square number
quotient
(Amount of increase/original whole) x100%
greater than

44. Average value
Middle value
Last digit divisible by 2
Sum of values/number of values
Multiply by 100%

45. The answer to a multiplication problem
estimate
product
Last two digits divisible by 4
exponents

46. To make a percent
Divide out largest common factor
greater than
equivalent
Multiply by 100%

47. To change a percent to a decimal
Drop percent - move decimal point two place to left
proportion
evaluate
number line

48. Standard deviation: greater if...
Last digit divisible by 2
least
Greater spread in values
prime factorization

49. Not identical or equivalent to
greater than
fraction
terminating decimals
not equal

50. Two expressions that are set equal to each other; a number sentence with an equal sign
associative property
compatible numbers
equation
root numbers