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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
(Amount of decrease/original whole) x100%
place value
LCM is LCD
Probability for each event then multiply individual probabilities together

2. To change a percent to a decimal
Drop percent - move decimal point two place to left
percent
odd number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

3. 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
numerator
inverse property
Sum of digits divisible by 9
common denominator

4. Comparing positive fractions
Greater spread in values
(Amount of increase/original whole) x100%
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Last digit 0 or 5

5. The answer to a multiplication problem
product
(Amount of decrease/original whole) x100%
order of operations
Reduce diagonally/vertically then multiply numerators and denominators

6. A fraction out of 100 - %
root numbers
irrational numbers
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
percent

7. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
sum
whole number
Drop percent - move decimal point two place to left
Original whole +/- amount of change

8. 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
composite number
1 dividing by number
identity property
Last digit 0 or 5

9. A fraction whose numerator is greater than its 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
prime factorization
improper fraction
percent

10. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
distributive property
expression
repeating decimals
decimal

11. Median
(Amount of increase/original whole) x100%
Middle value
equivalent
Multiply by 100%

12. 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
not equal
evaluate
Multiply by 100%

13. 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
Divide out largest common factor
irrational numbers
Reduce diagonally/vertically then multiply numerators and denominators
proportion

14. Answer to a multiplication problem
order of operations
exponents
Sum of digits divisible by 3
product

15. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
greatest
Sum of digits divisible by 9
fraction
Divide out largest common factor

16. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
difference
odd number
even
improper fraction

17. The expression of a number as a product of prime factors; use a factor tree!
common denominator
proportion
prime factorization
number line

18. New whole
exponents
simplify
Original whole +/- amount of change
Last two digits divisible by 4

19. Percent increase
value
proportion
(Amount of increase/original whole) x100%
Add zeros to decimals until all decimals have same number of digits

20. The difference between the greatest and the least numbers in a set of data.
numerator
range
square number
factor pair

21. A number with more than two factors
Line up decimal points
factor pair
composite number
Sum of digits divisible by 3

22. Simplifying complex fractions: two methods
Invert second term - then multiply
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
mixed number
even number

23. A set of operators - numbers - variables and grouping symbols; no equal sign
numerator
inverse property
Total A/total B
expression

24. Number divisible by 4
mixed number
Last two digits divisible by 4
Last digit divisible by 2
fraction

25. 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)
divisibility by 3 rule
Part
not equal
associative property

26. To drop a percent
Divide by 100%
denominator
greater than
commutative property

27. 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.
compensation
least
rational numbers
variables

28. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
factor pair
prime number
digit
not equal

29. Able to be divided evenly (without a remainder)
divisible
order of operations
range
compensation

30. Standard deviation: greater if...
difference
greatest common factor
compute
Greater spread in values

31. Average value
Sum of values/number of values
least common multiple
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
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

32. Relationship in which a number is smaller than another
difference
mixed number
less than
number line

33. Two factors together that are multiplied to equal a larger number.
factor pair
mixed number
order of operations
inverse property

34. Number divisible by 9
place value
whole number
Sum of digits divisible by 9
Add zeros to decimals until all decimals have same number of digits

35. Mode
factor
Value occurring most frequently
Probability for each event then multiply individual probabilities together
Divide by 100%

36. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
square number
digit
expression

37. Properties of 1 and -1

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38. A letter that represents a value that may change
prime number
variables
Number of desired outcomes/number of total possible outcomes
Reduce diagonally/vertically then multiply numerators and denominators

39. When a number is larger than the other number. Example 65 > 56
sum
Number of decimal places is total number of decimals places in factors multiplied
difference
greater than

40. Be identical or equivalent to
Divide by 100%
equation
equal
estimate

41. A comparison of 2 numbers; one form is a fraction
even
value
terminating decimals
ratio

42. Multiplying fractions
divisibility by 3 rule
simplify
odd
Reduce diagonally/vertically then multiply numerators and denominators

43. Percent x whole
common denominator
order of operations
Part
composite number

44. Reciprocal of number
Divide out largest common factor
ratio
1 dividing by number
commutative property

45. Number divisible by 2
Last digit divisible by 2
terminating decimals
root numbers
Probability for each event then multiply individual probabilities together

46. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
less than
inverse property
expression
compatible numbers

47. To make a percent
Divisible by 2 and 3
Multiply by 100%
quotient
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

48. How much a number is worth
value
expanded form using exponents
irrational numbers
least common multiple

49. Reducing fractions
Sum of values/number of values
digit
divisible
Divide out largest common factor

50. 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?
less than
denominator
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
equal