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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. Answer to a division problem
quotient
simplify
perfect square
equivalent

2. Multiplying decimals
associative property
compatible numbers
denominator
Number of decimal places is total number of decimals places in factors multiplied

3. A letter that represents a value that may change
irrational numbers
1 dividing by number
root numbers
variables

4. Reciprocal of number
even
greatest
1 dividing by number
divisible

5. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
decimal
(Amount of decrease/original whole) x100%
distributive property
order of operations

6. 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)=
odd
LCM is LCD
distributive property
Sum of values/number of values

7. Properties of 1 and -1

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8. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Reduce diagonally/vertically then multiply numerators and denominators
common denominator
decimal
fraction

9. Number divisible by 2
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
equivalent
(Amount of increase/original whole) x100%
Last digit divisible by 2

10. Number divisible by 9
digit
Sum of digits divisible by 9
constants
variables

11. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
greatest common factor
least common multiple
prime number
associative property

12. Standard deviation: greater if...
Greater spread in values
commutative property
even
least

13. In 4x4=16 - what is 4?
evaluate
Number of desired outcomes/number of total possible outcomes
even
root numbers

14. To make a percent
fraction
Multiply by 100%
LCM is LCD
sum

15. Multiple-event probability
Part
Probability for each event then multiply individual probabilities together
perfect square
product

16. A line for representing and graphing numbers. Each point on the line corresponds to a number.
ratio
number line
Divisible by 2 and 3
Sum of values/number of values

17. To find the answer for; solve
even
Probability for each event then multiply individual probabilities together
denominator
evaluate

18. Number divisible by 5
divisible
Last digit 0 or 5
common denominator
odd number

19. A number that results from multiplying a factor by itself
Last two digits divisible by 4
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Line up decimal points
square number

20. Relationship in which a number is smaller than another
decimal
less than
terminating decimals
distributive property

21. Number divisible by 4
Last two digits divisible by 4
Value occurring most frequently
variables
(Amount of decrease/original whole) x100%

22. A number made up of a whole number and a fraction
mixed number
range
simplify
whole number

23. To drop a percent
square number
numerator
Divide by 100%
difference

24. 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)
ratio
commutative property
associative property
greatest common factor

25. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
odd number
square number
even number
digit

26. To perform a calculation - E.g. 2+2=4
fraction
Last digit divisible by 2
expression
compute

27. 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
identity property
associative property
simplify
prime factorization

28. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
Last digit 0 or 5
whole number
composite number
expanded form using exponents

29. odd + odd
even
Last digit 0 or 5
associative property
repeating decimals

30. 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?
less than
even number
numerator
ratio

31. Number divisible by 3
Sum of digits divisible by 3
product
Probability for each event then multiply individual probabilities together
decimal

32. Number divisible by 6
digit
Number w/o signs
compatible numbers
Divisible by 2 and 3

33. Adding/subtracting fractions
compatible numbers
Sum of values/number of values
LCM is LCD
Value occurring most frequently

34. Reducing fractions
Divide out largest common factor
odd number
place value
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

35. Absolute value of number
digit
rational numbers
numerator
Number w/o signs

36. 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
LCM is LCD
irrational numbers
exponents
greatest common factor

37. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
inverse property
(Amount of decrease/original whole) x100%
odd number
product

38. Probability
Invert second term - then multiply
terminating decimals
Number of desired outcomes/number of total possible outcomes
compatible numbers

39. Median
Greater spread in values
Middle value
square number
greater than

40. The answer to a subtraction problem
Number of desired outcomes/number of total possible outcomes
difference
place value
range

41. Comparing positive fractions
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
range
ratio

42. Not identical or equivalent to
range
Middle value
Divide by 100%
not equal

43. A number that is multiplied by another number to find a producr
Reduce diagonally/vertically then multiply numerators and denominators
prime factorization
(Amount of decrease/original whole) x100%
factor

44. Properties of 0

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45. Able to be divided evenly (without a remainder)
range
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
divisible
Probability for each event then multiply individual probabilities together

46. To find a number that is close to an exact answer - E.g. 23+24 is around 50
estimate
identity property
square number
Last digit divisible by 2

47. To place a fraction in lowest terms
improper fraction
simplify
root numbers
compensation

48. Be identical or equivalent to
equal
greater than
Sum of digits divisible by 9
not equal

49. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
1 dividing by number
place 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
irrational numbers

50. Dividing decimals
Value occurring most frequently
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
value
not equal