Test your basic knowledge |

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. Adding/subtracting decimals
order of operations
greater than
estimate
Line up decimal points

2. Dividing fractions
Invert second term - then multiply
variables
Sum of values/number of values
evaluate

3. Reciprocal of number
repeating decimals
Add zeros to decimals until all decimals have same number of digits
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
1 dividing by number

4. How much a number is worth
range
perfect square
value
digit

5. 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)
digit
associative property
least
quotient

6. Number divisible by 2
Multiply by 100%
difference
Number w/o signs
Last digit divisible by 2

7. Two factors together that are multiplied to equal a larger number.
numerator
Divide out largest common factor
factor pair
product

8. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
compute
prime factorization
even number
commutative property

9. The expression of a number as a product of prime factors; use a factor tree!
greatest common factor
identity property
prime factorization
percent

10. Multiplying fractions
whole number
improper fraction
square number
Reduce diagonally/vertically then multiply numerators and denominators

11. To find a number that is close to an exact answer - E.g. 23+24 is around 50
expression
estimate
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
greatest common factor

12. Percent x whole
denominator
Part
greatest common factor
rational numbers

13. The smallest number in a group of numbers
denominator
least
perfect square
Invert second term - then multiply

14. The greatest whole number that is a factor of two or more nonzero whole numbers
(Amount of decrease/original whole) x100%
square number
greatest common factor
Sum of values/number of values

15. Mode
least
Value occurring most frequently
1 dividing by number
Original whole +/- amount of change

16. The answer to an addition problem
rational numbers
greatest common factor
sum
compensation

17. A set of operators - numbers - variables and grouping symbols; no equal sign
improper fraction
compatible numbers
expression
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

18. New whole
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
even number
Original whole +/- amount of change
common denominator

19. To make a percent
Multiply by 100%
greatest common factor
less than
equal

20. A comparison of 2 numbers; one form is a fraction
Drop percent - move decimal point two place to left
product
ratio
evaluate

21. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
root numbers
Middle value
least common multiple
ratio

22. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
whole number
distributive property
Number of decimal places is total number of decimals places in factors multiplied
prime number

23. A letter that represents a value that may change
variables
greatest common factor
distributive property
Add zeros to decimals until all decimals have same number of digits

24. Properties of 0

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

25. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
Part
factor pair
sum

26. 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.
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
mixed number
compensation
commutative property

27. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Total A/total B
expression
simplify

28. A number that results from multiplying a factor by itself
Line up decimal points
Last digit 0 or 5
associative property
square number

29. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
odd number
LCM is LCD
repeating decimals
common denominator

30. 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
fraction
decimal
inverse property
even

31. 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?
Sum of values/number of values
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
estimate
denominator

32. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
Number of desired outcomes/number of total possible outcomes
mixed number
Sum of digits divisible by 9
expanded form using exponents

33. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
prime number
(Amount of decrease/original whole) x100%
divisibility by 3 rule
Divide out largest common factor

34. Number divisible by 3
Sum of digits divisible by 3
expression
Invert second term - then multiply
Last two digits divisible by 4

35. Comparing decimal fractions
composite number
equivalent
Add zeros to decimals until all decimals have same number of digits
prime number

36. 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
product
identity property
terminating decimals
Divisible by 2 and 3

37. A number that is multiplied by another number to find a producr
factor
Last digit divisible by 2
fraction
LCM is LCD

38. Number divisible by 5
rational numbers
Last digit 0 or 5
least common multiple
factor

39. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
difference
whole number
Multiply by 100%
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

40. Probability
value
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
digit
Number of desired outcomes/number of total possible outcomes

41. To find the answer for; solve
evaluate
Number w/o signs
less than
variables

42. Number divisible by 6
estimate
Divisible by 2 and 3
number line
Drop percent - move decimal point two place to left

43. Percent increase
equivalent
square number
(Amount of increase/original whole) x100%
inverse property

44. Reducing fractions
Divide out largest common factor
Last digit 0 or 5
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
common denominator

45. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
digit
percent

46. Relationship in which a number is smaller than another
rational numbers
compute
Line up decimal points
less than

47. Properties of numbers btw -1 and 1

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

48. The answer to a subtraction problem
difference
Divisible by 2 and 3
prime factorization
identity property

49. A number made up of a whole number and a fraction
denominator
mixed number
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
quotient

50. Standard deviation: greater if...
prime factorization
factor
Greater spread in values
decimal