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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. A fraction out of 100 - %
Line up decimal points
terminating decimals
(Amount of increase/original whole) x100%
percent

2. Properties of 1 and -1

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3. Probability
product
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
divisibility by 3 rule

4. A number that results from multiplying a factor by itself
(Amount of decrease/original whole) x100%
Sum of digits divisible by 9
square number
improper fraction

5. odd + even
common denominator
odd
least common multiple
distributive property

6. To perform a calculation - E.g. 2+2=4
product
odd
Number of decimal places is total number of decimals places in factors multiplied
compute

7. To find the answer for; solve
Number of desired outcomes/number of total possible outcomes
terminating decimals
greatest common factor
evaluate

8. 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
Sum of digits divisible by 3
repeating decimals
range

9. A fraction whose numerator is greater than its denominator
improper fraction
common denominator
range
place value

10. Percent increase
compensation
(Amount of increase/original whole) x100%
compute
evaluate

11. The difference between the greatest and the least numbers in a set of data.
Part
even
value
range

12. 1/5 + 1/4=4/20 +5/20 and 20 is the...
greater than
proportion
Divide by 100%
common denominator

13. New whole
repeating decimals
Original whole +/- amount of change
least
Sum of values/number of values

14. Absolute value of number
improper fraction
greater than
Number w/o signs
Last digit 0 or 5

15. Number divisible by 3
Sum of digits divisible by 3
greatest common factor
Number w/o signs
Drop percent - move decimal point two place to left

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

17. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
least common multiple
repeating decimals
variables
factor

18. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
compatible numbers
greater than
compensation
numerator

19. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
variables
identity property
terminating decimals
Value occurring most frequently

20. 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)
Divide out largest common factor
Sum of digits divisible by 9
associative property
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

21. To place a fraction in lowest terms
factor pair
simplify
sum
Last digit divisible by 2

22. Number divisible by 9
product
greater than
Sum of digits divisible by 9
equal

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

24. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
even
compute
(Amount of decrease/original whole) x100%

25. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
evaluate
compensation
number line

26. Percent decrease
(Amount of decrease/original whole) x100%
Last digit divisible by 2
Original whole +/- amount of change
constants

27. Relationship in which a number is smaller than another
(Amount of increase/original whole) x100%
decimal
less than
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

28. 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?
Reduce diagonally/vertically then multiply numerators and denominators
Part
denominator
LCM is LCD

29. Adding/subtracting decimals
fraction
quotient
Line up decimal points
equivalent

30. 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.
root numbers
greatest
Divide by 100%
compensation

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

32. How much a number is worth
(Amount of decrease/original whole) x100%
value
Part
even number

33. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
place value
compensation
Sum of digits divisible by 3
equation

34. A number made up of a whole number and a fraction
square number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
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
mixed number

35. A number that is multiplied by another number to find a producr
repeating decimals
factor
Divide by 100%
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

36. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
expanded form using exponents
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
expression
digit

37. 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
rational numbers
irrational numbers
number line
Number w/o signs

38. Number divisible by 5
quotient
Last digit 0 or 5
Part
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

39. Number divisible by 2
Number of decimal places is total number of decimals places in factors multiplied
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
irrational numbers
Last digit divisible by 2

40. Dividing decimals
whole number
Divisible by 2 and 3
greatest common factor
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

41. Mode
Value occurring most frequently
decimal
number line
compensation

42. The largest number in a group of numbers
Last digit 0 or 5
number line
greater than
greatest

43. Able to be divided evenly (without a remainder)
square number
divisible
decimal
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

44. Comparing decimal fractions
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
value
Line up decimal points
Add zeros to decimals until all decimals have same number of digits

45. Two expressions that are set equal to each other; a number sentence with an equal sign
odd
inverse property
equation
not equal

46. When a number is larger than the other number. Example 65 > 56
numerator
greater than
Drop percent - move decimal point two place to left
Original whole +/- amount of change

47. Multiplying fractions
less than
order of operations
Divide out largest common factor
Reduce diagonally/vertically then multiply numerators and denominators

48. The greatest whole number that is a factor of two or more nonzero whole numbers
Divide out largest common factor
greatest common factor
Divide by 100%
divisible

49. Number divisible by 6
Multiply by 100%
Divisible by 2 and 3
decimal
percent

50. Properties of numbers btw -1 and 1

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