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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. Median
equation
Middle value
Number of decimal places is total number of decimals places in factors multiplied
range

2. In 4x4=16 - what is 4?
LCM is LCD
root numbers
simplify
compensation

3. The answer to an addition problem
sum
denominator
least
equivalent

4. Average value
rational numbers
Sum of digits divisible by 3
Sum of values/number of values
product

5. 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?
equation
Number of decimal places is total number of decimals places in factors multiplied
numerator
(Amount of increase/original whole) x100%

6. To find the answer for; solve
prime number
evaluate
Invert second term - then multiply
even number

7. To change a percent to a decimal
Drop percent - move decimal point two place to left
compute
improper fraction
product

8. To make a percent
decimal
Number of desired outcomes/number of total possible outcomes
Multiply by 100%
evaluate

9. Answer to a multiplication problem
variables
equal
product
even number

10. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
equation
factor
even
compatible numbers

11. Percent increase
(Amount of increase/original whole) x100%
proportion
value
whole number

12. The smallest number in a group of numbers
value
Sum of values/number of values
least
simplify

13. Adding/subtracting decimals
Line up decimal points
Last two digits divisible by 4
not equal
Middle value

14. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
terminating decimals
Divide by 100%
Add zeros to decimals until all decimals have same number of digits
least common multiple

15. 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)=
Sum of digits divisible by 3
odd number
distributive property
evaluate

16. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
numerator
expanded form using exponents
greatest common factor
identity property

17. A comparison of 2 numbers; one form is a fraction
ratio
sum
expression
factor

18. A number with one or more digits to the right of the decimal point - E.g. .33
decimal
ratio
constants
Divisible by 2 and 3

19. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
numerator
factor pair
least common multiple
denominator

20. Probability
Number of desired outcomes/number of total possible outcomes
Reduce diagonally/vertically then multiply numerators and denominators
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

21. Able to be divided evenly (without a remainder)
Divide out largest common factor
Multiply by 100%
divisible
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

22. Not identical or equivalent to
odd
sum
Value occurring most frequently
not equal

23. 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
greatest common factor
Last two digits divisible by 4
irrational numbers
Multiply by 100%

24. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
Reduce diagonally/vertically then multiply numerators and denominators
fraction
place value
exponents

25. Properties of 0

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26. Natural Numbers - Whole Numbers - Integers - Rational Numbers
(Amount of decrease/original whole) x100%
equivalent
percent
rational numbers

27. Answer to a division problem
Divide out largest common factor
quotient
Reduce diagonally/vertically then multiply numerators and denominators
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

28. Relationship in which a number is smaller than another
least common multiple
Add zeros to decimals until all decimals have same number of digits
place value
less than

29. Multiplying decimals
product
Number of decimal places is total number of decimals places in factors multiplied
order of operations
inverse property

30. Number divisible by 6
Divisible by 2 and 3
LCM is LCD
equation
number line

31. Dividing decimals
constants
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
place value
Probability for each event then multiply individual probabilities together

32. A number that results from multiplying a factor by itself
greatest common factor
square number
Middle value
decimal

33. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
whole number
equivalent
compensation
denominator

34. Standard deviation: greater if...
greatest common factor
Line up decimal points
prime number
Greater spread in values

35. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
place value
prime number
Divide out largest common factor
expression

36. A shortcut for writing repeated multiplication
LCM is LCD
irrational numbers
compute
exponents

37. To place a fraction in lowest terms
square number
Value occurring most frequently
simplify
proportion

38. Multiplying fractions
range
expanded form using exponents
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Reduce diagonally/vertically then multiply numerators and denominators

39. Mode
(Amount of decrease/original whole) x100%
Value occurring most frequently
factor
distributive property

40. 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
identity property
Probability for each event then multiply individual probabilities together
prime factorization

41. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
divisibility by 3 rule
repeating decimals
Number w/o signs
Greater spread in values

42. A number made up of a whole number and a fraction
greatest common factor
mixed number
exponents
divisible

43. 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
value
Divisible by 2 and 3
inverse property
estimate

44. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
odd
Number of desired outcomes/number of total possible outcomes
Number of decimal places is total number of decimals places in factors multiplied
whole number

45. 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)
Last digit 0 or 5
commutative property
less than
Sum of values/number of values

46. Simplifying complex fractions: two methods
quotient
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
least
Number of decimal places is total number of decimals places in factors multiplied

47. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
irrational numbers
Drop percent - move decimal point two place to left
order of operations
Divide out largest common factor

48. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
Divisible by 2 and 3
odd
Value occurring most frequently

49. odd + even
improper fraction
(Amount of decrease/original whole) x100%
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
odd

50. Be identical or equivalent to
equal
greater than
factor
commutative property