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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. Properties of 0

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2. Properties of numbers btw -1 and 1

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3. 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
factor
distributive property
repeating decimals

4. Average A per B
Divide out largest common factor
Line up decimal points
Total A/total B
factor

5. To drop a percent
Last digit 0 or 5
variables
Divide by 100%
irrational numbers

6. A number with one or more digits to the right of the decimal point - E.g. .33
distributive property
1 dividing by number
(Amount of decrease/original whole) x100%
decimal

7. Multiplying decimals
LCM is LCD
Number of decimal places is total number of decimals places in factors multiplied
Value occurring most frequently
place value

8. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
Number of decimal places is total number of decimals places in factors multiplied
prime number
Sum of digits divisible by 9
greatest common factor

9. A comparison of 2 numbers; one form is a fraction
Sum of digits divisible by 3
ratio
not equal
Divisible by 2 and 3

10. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
Divide out largest common factor
composite number
even number
associative property

11. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
terminating decimals
1 dividing by number
prime factorization
quotient

12. A letter that represents a value that may change
fraction
compensation
variables
Value occurring most frequently

13. Median
Sum of digits divisible by 3
Multiply by 100%
Number of decimal places is total number of decimals places in factors multiplied
Middle value

14. Percent x whole
identity property
Part
estimate
exponents

15. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
product
Add zeros to decimals until all decimals have same number of digits
Total A/total B
odd number

16. New whole
Original whole +/- amount of change
Sum of values/number of values
Middle value
estimate

17. Answer to a division problem
LCM is LCD
greatest
inverse property
quotient

18. To place a fraction in lowest terms
number line
whole number
prime factorization
simplify

19. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
factor
equivalent
value
whole number

20. Number divisible by 5
Last digit 0 or 5
irrational numbers
terminating decimals
percent

21. How much a number is worth
value
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
Middle value
Probability for each event then multiply individual probabilities together

22. Probability
Last digit 0 or 5
product
simplify
Number of desired outcomes/number of total possible outcomes

23. A number that results from multiplying a factor by itself
divisibility by 3 rule
odd number
square number
commutative property

24. A number made up of a whole number and a fraction
place value
decimal
ratio
mixed number

25. The expression of a number as a product of prime factors; use a factor tree!
prime factorization
number line
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
irrational numbers

26. To make a percent
Invert second term - then multiply
Multiply by 100%
constants
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

27. To change a percent to a decimal
percent
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
Drop percent - move decimal point two place to left
denominator

28. Dividing decimals
Invert second term - then multiply
divisibility by 3 rule
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Last digit divisible by 2

29. Adding/subtracting decimals
Drop percent - move decimal point two place to left
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
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Line up decimal points

30. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
LCM is LCD
expanded form using exponents
digit
distributive property

31. Average value
Sum of values/number of values
even
LCM is LCD
factor pair

32. Reciprocal of number
Number of decimal places is total number of decimals places in factors multiplied
odd
perfect square
1 dividing by number

33. To perform a calculation - E.g. 2+2=4
compute
repeating decimals
inverse property
equation

34. Able to be divided evenly (without a remainder)
divisible
ratio
inverse property
Number of decimal places is total number of decimals places in factors multiplied

35. 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
factor
number line
compatible numbers

36. A number with more than two factors
Line up decimal points
LCM is LCD
Reduce diagonally/vertically then multiply numerators and denominators
composite number

37. A fraction whose numerator is greater than its denominator
improper fraction
root numbers
Value occurring most frequently
Divide by 100%

38. Number divisible by 2
digit
whole number
Reduce diagonally/vertically then multiply numerators and denominators
Last digit divisible by 2

39. Absolute value of number
Number w/o signs
order of operations
equal
irrational numbers

40. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
Number w/o signs
irrational numbers
difference

41. Be identical or equivalent to
Total A/total B
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
variables
equal

42. A line for representing and graphing numbers. Each point on the line corresponds to a number.
product
less than
number line
greater than

43. 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.
inverse property
Total A/total B
rational numbers
compensation

44. Number divisible by 6
Sum of digits divisible by 9
decimal
LCM is LCD
Divisible by 2 and 3

45. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
Sum of digits divisible by 3
expanded form using exponents
equation
not equal

46. 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
equivalent
decimal
Divide out largest common factor

47. Not identical or equivalent to
not equal
square number
compute
place value

48. Percent increase
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
proportion
inverse property
(Amount of increase/original whole) x100%

49. An equation showing 2 ratios are equal
proportion
expanded form using exponents
rational numbers
least

50. To find a number that is close to an exact answer - E.g. 23+24 is around 50
evaluate
compatible numbers
estimate
commutative property