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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. An equation showing 2 ratios are equal
Last two digits divisible by 4
proportion
distributive property
Number of desired outcomes/number of total possible outcomes

2. 8x8=64 What is 64?
perfect square
number line
range
identity property

3. Multiple-event probability
estimate
Probability for each event then multiply individual probabilities together
expression
number line

4. The answer to an addition problem
sum
whole number
Greater spread in values
estimate

5. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
divisible
repeating decimals
Middle value
even number

6. Multiplying fractions
percent
prime factorization
Reduce diagonally/vertically then multiply numerators and denominators
less than

7. Dividing decimals
irrational numbers
Number of desired outcomes/number of total possible outcomes
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Original whole +/- amount of change

8. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
Divisible by 2 and 3
repeating decimals
expanded form using exponents
equal

9. A number that is multiplied by another number to find a producr
repeating decimals
factor
expression
quotient

10. Number divisible by 6
Middle value
Divisible by 2 and 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
Divide by 100%

11. Reciprocal of number
inverse property
1 dividing by number
Multiply by 100%
compensation

12. 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)
Probability for each event then multiply individual probabilities together
associative property
commutative property
order of operations

13. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
Original whole +/- amount of change
expanded form using exponents
Number of decimal places is total number of decimals places in factors multiplied
order of operations

14. To perform a calculation - E.g. 2+2=4
exponents
Probability for each event then multiply individual probabilities together
commutative property
compute

15. Multiplying decimals
constants
percent
greatest common factor
Number of decimal places is total number of decimals places in factors multiplied

16. To place a fraction in lowest terms
not equal
Multiply by 100%
(Amount of decrease/original whole) x100%
simplify

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?
greatest
Value occurring most frequently
denominator
product

18. Percent increase
percent
square number
Part
(Amount of increase/original whole) x100%

19. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
(Amount of increase/original whole) x100%
Drop percent - move decimal point two place to left
equivalent
common denominator

20. Properties of numbers btw -1 and 1

21. Simplifying complex fractions: two methods
1 dividing by number
distributive property
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Total A/total B

22. A number that results from multiplying a factor by itself
square number
whole number
LCM is LCD
odd number

23. Number divisible by 3
Sum of digits divisible by 3
sum
equation
Add zeros to decimals until all decimals have same number of digits

24. Answer to a multiplication problem
Original whole +/- amount of change
Value occurring most frequently
product
associative property

25. 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
greatest common factor
evaluate
range
identity property

26. A number with one or more digits to the right of the decimal point - E.g. .33
odd
divisibility by 3 rule
decimal
inverse property

27. A number made up of a whole number and a fraction
number line
greatest common factor
mixed number
commutative property

28. Number divisible by 4
estimate
Last two digits divisible by 4
proportion
square number

29. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
square number
factor
evaluate

30. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
number line
Middle value
order of operations
decimal

31. 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)=
distributive property
factor pair
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
Sum of digits divisible by 9

32. A fraction out of 100 - %
Sum of values/number of values
percent
product
expression

33. To change a percent to a decimal
Drop percent - move decimal point two place to left
simplify
LCM is LCD
prime factorization

34. How much a number is worth
Original whole +/- amount of change
value
estimate
digit

35. Be identical or equivalent to
rational numbers
expression
equal
equivalent

36. When a number is larger than the other number. Example 65 > 56
Number of desired outcomes/number of total possible outcomes
perfect square
greater than
less than

37. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
even number
compute
prime number

38. A letter that represents a value that may change
digit
variables
rational numbers
root numbers

39. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
Value occurring most frequently
Divide by 100%
irrational numbers

40. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
LCM is LCD
Original whole +/- amount of change
odd number
proportion

41. A shortcut for writing repeated multiplication
Number of decimal places is total number of decimals places in factors multiplied
Sum of digits divisible by 3
exponents
expanded form using exponents

42. Median
quotient
Middle value
compensation
factor pair

43. A number with more than two factors
Add zeros to decimals until all decimals have same number of digits
compatible numbers
composite number
rational numbers

44. The expression of a number as a product of prime factors; use a factor tree!
prime factorization
Middle value
greater than
Number of decimal places is total number of decimals places in factors multiplied

45. 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
irrational numbers
odd
terminating decimals

46. A line for representing and graphing numbers. Each point on the line corresponds to a number.
greatest common factor
number line
improper fraction
Sum of digits divisible by 3

47. odd + even
Number of decimal places is total number of decimals places in factors multiplied
common denominator
Value occurring most frequently
odd

48. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Total A/total B
odd number
Divide out largest common factor
terminating decimals

49. Adding/subtracting fractions
root numbers
equivalent
numerator
LCM is LCD

50. Comparing positive fractions
perfect square
Probability for each event then multiply individual probabilities together
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
prime factorization