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Test your basic knowledge 
Number Sense Vocab
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Study First
Subjects
:
math
,
numbersense
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 reenforces your understanding as you take the test each time.
1. 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)
numerator
proportion
associative property
decimal
2. Percent increase
(Amount of increase/original whole) x100%
proportion
Divisible by 2 and 3
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
3. 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
prime number
inverse property
digit
irrational numbers
4. 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
square number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
factor pair
5. The answer to an addition problem
sum
Reduce diagonally/vertically then multiply numerators and denominators
terminating decimals
fraction
6. Adding/subtracting fractions
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
LCM is LCD
Last digit divisible by 2
identity property
7. A number made up of a whole number and a fraction
perfect square
mixed number
not equal
simplify
8. To change a percent to a decimal
Invert second term  then multiply
Drop percent  move decimal point two place to left
Sum of digits divisible by 3
value
9. The value of a digit based on its position within a number  e.g. 2 432 The position of the numbers
numerator
place value
whole number
distributive property
10. The answer to a multiplication problem
Divide out largest common factor
identity property
inverse property
product
11. Properties of 0
12. A number that represents a part of a whole or a group; also means 'divided by'  E.g. 1/2 3/4.5/6
1 dividing by number
identity property
decimal
fraction
13. Reducing fractions
decimal
Divide out largest common factor
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Sum of digits divisible by 3
14. Numbers that are easy to compute mentally  E.g. 34 / 5 is close to 35 / 5
compatible numbers
compute
place value
Number of desired outcomes/number of total possible outcomes
15. Two factors together that are multiplied to equal a larger number.
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
range
factor pair
equal
16. Percent x whole
decimal
variables
proportion
Part
17. 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
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
ratio
range
identity property
18. A line for representing and graphing numbers. Each point on the line corresponds to a number.
Last two digits divisible by 4
least
number line
Greater spread in values
19. Two expressions that are set equal to each other; a number sentence with an equal sign
Sum of values/number of values
Last two digits divisible by 4
equation
greater than
20. A number written in expanded form with the place values written in exponential form  E.g. 2432=2000+400+30+2
order of operations
product
expanded form using exponents
square number
21. Median
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Middle value
commutative property
terminating decimals
22. Dividing fractions
Number of desired outcomes/number of total possible outcomes
digit
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Invert second term  then multiply
23. The largest number in a group of numbers
Invert second term  then multiply
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
exponents
greatest
24. 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?
factor pair
numerator
Multiply by 100%
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
25. A value that does not change; any number
Divide by 100%
constants
number line
percent
26. A number with more than two factors
improper fraction
Original whole +/ amount of change
composite number
proportion
27. Mode
order of operations
prime factorization
even number
Value occurring most frequently
28. Properties of numbers btw 1 and 1
29. Able to be divided evenly (without a remainder)
divisible
compatible numbers
compensation
Number w/o signs
30. The difference between the greatest and the least numbers in a set of data.
greatest common factor
range
number line
Number of decimal places is total number of decimals places in factors multiplied
31. Number divisible by 5
digit
Line up decimal points
compute
Last digit 0 or 5
32. A set of operators  numbers  variables and grouping symbols; no equal sign
root numbers
simplify
expression
Last digit divisible by 2
33. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
Number of desired outcomes/number of total possible outcomes
repeating decimals
estimate
expression
34. To make a percent
Part
Multiply by 100%
Last digit 0 or 5
Value occurring most frequently
35. Properties of 1 and 1
36. 8x8=64 What is 64?
percent
Last two digits divisible by 4
perfect square
repeating decimals
37. A number with one or more digits to the right of the decimal point  E.g. .33
associative property
simplify
divisible
decimal
38. The smallest number in a group of numbers
compatible numbers
least common multiple
numerator
least
39. To perform a calculation  E.g. 2+2=4
Greater spread in values
least common multiple
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
compute
40. A number without fractions; an integer E.g. 0  1  2  3  4  5  6  7  8  9...
expanded form using exponents
whole number
commutative property
Add zeros to decimals until all decimals have same number of digits
41. New whole
compensation
Original whole +/ amount of change
divisible
factor
42. Relationship in which a number is smaller than another
even
Middle value
number line
less than
43. 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.
compensation
denominator
sum
constants
44. Adding/subtracting decimals
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
least
digit
Line up decimal points
45. Not identical or equivalent to
expression
composite number
estimate
not equal
46. Reciprocal of number
number line
1 dividing by number
greatest common factor
constants
47. Percent decrease
number line
decimal
least common multiple
(Amount of decrease/original whole) x100%
48. Two numbers or expressions that mean the same thing  E.g. 2/3=4/6
value
numerator
equivalent
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
49. 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
Probability for each event then multiply individual probabilities together
variables
irrational numbers
50. Average A per B
Number of decimal places is total number of decimals places in factors multiplied
Last digit 0 or 5
equivalent
Total A/total B