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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. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
LCM is LCD
Number of decimal places is total number of decimals places in factors multiplied
factor pair

2. The difference between the greatest and the least numbers in a set of data.
range
order of operations
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
greatest common factor

3. 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
Divide by 100%
Total A/total B
Part

4. Absolute value of number
equal
number line
Number w/o signs
Reduce diagonally/vertically then multiply numerators and denominators

5. 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
range
identity property
sum
Multiply by 100%

6. Answer to a multiplication problem
Number of desired outcomes/number of total possible outcomes
even
ratio
product

7. 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?
percent
prime factorization
Reduce diagonally/vertically then multiply numerators and denominators
denominator

8. How much a number is worth
Number of decimal places is total number of decimals places in factors multiplied
Last digit 0 or 5
value
Reduce diagonally/vertically then multiply numerators and denominators

9. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
odd number
estimate
Divisible by 2 and 3
proportion

10. A fraction out of 100 - %
percent
1 dividing by number
divisible
Drop percent - move decimal point two place to left

11. Probability
Invert second term - then multiply
Number of desired outcomes/number of total possible outcomes
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
Divisible by 2 and 3

12. A value that does not change; any number
1 dividing by number
expression
even
constants

13. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Multiply by 100%
rational numbers
place value
even

14. Multiplying decimals
value
percent
Number of decimal places is total number of decimals places in factors multiplied
even

15. Percent decrease
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
rational numbers
(Amount of decrease/original whole) x100%
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

16. To change a percent to a decimal
compatible numbers
order of operations
Drop percent - move decimal point two place to left
Last digit 0 or 5

17. A number that is multiplied by another number to find a producr
whole number
terminating decimals
digit
factor

18. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
Middle value
least common multiple
prime number
composite number

19. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
composite number
Divide by 100%
order of operations
quotient

20. Median
Middle value
Reduce diagonally/vertically then multiply numerators and denominators
greatest
terminating decimals

21. Multiplying fractions
Reduce diagonally/vertically then multiply numerators and denominators
LCM is LCD
Sum of digits divisible by 9
least

22. Properties of 0

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23. The answer to a subtraction problem
difference
inverse property
Original whole +/- amount of change
Probability for each event then multiply individual probabilities together

24. The greatest whole number that is a factor of two or more nonzero whole numbers
Number w/o signs
value
greatest common factor
equal

25. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
less than
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
1 dividing by number

26. 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)=
Number of desired outcomes/number of total possible outcomes
common denominator
distributive property
product

27. Adding/subtracting decimals
Divide out largest common factor
Line up decimal points
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
expanded form using exponents

28. Percent x whole
Original whole +/- amount of change
Part
not equal
place value

29. Number divisible by 4
Last two digits divisible by 4
1 dividing by number
irrational numbers
compensation

30. Reciprocal of number
even
divisible
whole number
1 dividing by number

31. A comparison of 2 numbers; one form is a fraction
ratio
variables
mixed number
equal

32. To find a number that is close to an exact answer - E.g. 23+24 is around 50
commutative property
Divide out largest common factor
odd
estimate

33. A shortcut for writing repeated multiplication
Sum of values/number of values
fraction
odd number
exponents

34. 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
inverse property
perfect square
(Amount of increase/original whole) x100%
compute

35. Properties of 1 and -1

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36. When a number is larger than the other number. Example 65 > 56
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
greater than
Number of decimal places is total number of decimals places in factors multiplied
Line up decimal points

37. Average value
prime number
equivalent
Part
Sum of values/number of values

38. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
Drop percent - move decimal point two place to left
whole number
repeating decimals
greater than

39. Number divisible by 2
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
equivalent
Last digit divisible by 2
terminating decimals

40. Dividing fractions
not equal
whole number
place value
Invert second term - then multiply

41. New whole
perfect square
associative property
Value occurring most frequently
Original whole +/- amount of change

42. A letter that represents a value that may change
compute
variables
decimal
repeating decimals

43. Average A per B
Total A/total B
factor pair
number line
simplify

44. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
whole number
inverse property
denominator
fraction

45. A number with more than two factors
odd number
composite number
ratio
Last digit divisible by 2

46. A number that results from multiplying a factor by itself
numerator
square number
equation
Value occurring most frequently

47. A fraction whose numerator is greater than its denominator
rational numbers
distributive property
identity property
improper fraction

48. Number divisible by 6
decimal
Divisible by 2 and 3
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
associative property

49. To place a fraction in lowest terms
simplify
equal
greater than
Divide by 100%

50. A number made up of a whole number and a fraction
denominator
mixed number
Original whole +/- amount of change
product