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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 whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
even number
Sum of digits divisible by 3
odd number
square number

2. 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
Number of desired outcomes/number of total possible outcomes
evaluate
product

3. To place a fraction in lowest terms
simplify
Total A/total B
Drop percent - move decimal point two place to left
Line up decimal points

4. Two factors together that are multiplied to equal a larger number.
inverse property
equal
value
factor pair

5. A shortcut for writing repeated multiplication
square number
not equal
exponents
place value

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)=
distributive property
Reduce diagonally/vertically then multiply numerators and denominators
Divide out largest common factor
proportion

7. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
place value
constants
prime number
odd number

8. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
least common multiple
Divide out largest common factor
common denominator

9. 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.
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
compensation
rational numbers
Invert second term - then multiply

10. The greatest whole number that is a factor of two or more nonzero whole numbers
greatest common factor
denominator
Original whole +/- amount of change
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

11. Properties of numbers btw -1 and 1

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12. Be identical or equivalent to
equal
quotient
distributive property
prime number

13. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
value
equivalent
factor
greater than

14. 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?
denominator
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
(Amount of decrease/original whole) x100%
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

15. Comparing positive fractions
root numbers
evaluate
Total A/total B
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

16. Percent decrease
distributive property
(Amount of decrease/original whole) x100%
even number
prime factorization

17. A set of operators - numbers - variables and grouping symbols; no equal sign
greater than
percent
range
expression

18. A line for representing and graphing numbers. Each point on the line corresponds to a number.
even number
composite number
number line
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

19. Able to be divided evenly (without a remainder)
Number w/o signs
divisible
compensation
value

20. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
product
distributive property
Original whole +/- amount of change
least common multiple

21. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
factor pair
divisibility by 3 rule
1 dividing by number
compensation

22. The largest number in a group of numbers
greatest
Last digit divisible by 2
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Part

23. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
Reduce diagonally/vertically then multiply numerators and denominators
compatible numbers
Part
Number w/o signs

24. A fraction whose numerator is greater than its denominator
improper fraction
Drop percent - move decimal point two place to left
repeating decimals
Number of desired outcomes/number of total possible outcomes

25. The difference between the greatest and the least numbers in a set of data.
Probability for each event then multiply individual probabilities together
expanded form using exponents
range
simplify

26. To change a percent to a decimal
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Multiply by 100%
variables
Drop percent - move decimal point two place to left

27. A number that is multiplied by another number to find a producr
LCM is LCD
terminating decimals
square number
factor

28. Number divisible by 4
Number w/o signs
Divide by 100%
greatest common factor
Last two digits divisible by 4

29. 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?
greatest common factor
rational numbers
constants
numerator

30. Dividing decimals
not equal
prime factorization
difference
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

31. Not identical or equivalent to
not equal
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
even
factor

32. A comparison of 2 numbers; one form is a fraction
distributive property
inverse property
ratio
numerator

33. Number divisible by 2
whole number
Part
factor
Last digit divisible by 2

34. The smallest number in a group of numbers
Last two digits divisible by 4
least
square number
least common multiple

35. Multiplying fractions
Reduce diagonally/vertically then multiply numerators and denominators
percent
Number of decimal places is total number of decimals places in factors multiplied
irrational numbers

36. 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
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
common denominator
Total A/total B

37. A fraction out of 100 - %
LCM is LCD
whole number
percent
proportion

38. How much a number is worth
value
greater than
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
percent

39. An equation showing 2 ratios are equal
identity property
root numbers
estimate
proportion

40. A number with more than two factors
least common multiple
Sum of values/number of values
composite number
denominator

41. A number that results from multiplying a factor by itself
square number
simplify
Divisible by 2 and 3
Divide out largest common factor

42. Number divisible by 6
Reduce diagonally/vertically then multiply numerators and denominators
Divisible by 2 and 3
Last two digits divisible by 4
greatest

43. Answer to a division problem
quotient
Number of desired outcomes/number of total possible outcomes
even number
Sum of digits divisible by 3

44. Comparing decimal fractions
1 dividing by number
Add zeros to decimals until all decimals have same number of digits
number line
Value occurring most frequently

45. When a number is larger than the other number. Example 65 > 56
divisible
quotient
greater than
difference

46. New whole
Part
compensation
divisibility by 3 rule
Original whole +/- amount of change

47. Two expressions that are set equal to each other; a number sentence with an equal sign
factor pair
distributive property
equation
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

48. Natural Numbers - Whole Numbers - Integers - Rational Numbers
Greater spread in values
identity property
rational numbers
least

49. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
order of operations
odd
digit
1 dividing by number

50. Reducing fractions
Divide out largest common factor
1 dividing by number
number line
Reduce diagonally/vertically then multiply numerators and denominators