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Test your basic knowledge 
Number Sense Vocab
Start Test
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. 1/5 + 1/4=4/20 +5/20 and 20 is the...
exponents
factor
common denominator
variables
2. A fraction out of 100  %
percent
less than
equation
sum
3. To make a percent
Add zeros to decimals until all decimals have same number of digits
least
digit
Multiply by 100%
4. Properties of 1 and 1
5. A set of operators  numbers  variables and grouping symbols; no equal sign
Middle value
expression
root numbers
percent
6. A value that does not change; any number
identity property
variables
constants
denominator
7. The answer to an addition problem
sum
compensation
Number w/o signs
expanded form using exponents
8. A number with more than two factors
equivalent
prime number
odd
composite number
9. When a number is larger than the other number. Example 65 > 56
greater than
proportion
estimate
equivalent
10. 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
(Amount of increase/original whole) x100%
Add zeros to decimals until all decimals have same number of digits
proportion
inverse property
11. odd + even
composite number
percent
odd
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
12. Mode
quotient
expanded form using exponents
Value occurring most frequently
associative property
13. Standard deviation: greater if...
percent
Greater spread in values
factor
odd number
14. Percent increase
compatible numbers
Sum of values/number of values
Drop percent  move decimal point two place to left
(Amount of increase/original whole) x100%
15. Dividing decimals
greatest
expression
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
denominator
16. Multiplying decimals
sum
Number of decimal places is total number of decimals places in factors multiplied
(Amount of increase/original whole) x100%
estimate
17. Adding/subtracting fractions
greatest
LCM is LCD
(Amount of increase/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
18. A number with one or more digits to the right of the decimal point  E.g. .33
decimal
factor pair
product
Multiply by 100%
19. Be identical or equivalent to
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
equal
Reduce diagonally/vertically then multiply numerators and denominators
odd number
20. Any of the symbols used to write numbers (0  1  2  3  4  5  6  7  8  9)
Part
digit
place value
Divide out largest common factor
21. A line for representing and graphing numbers. Each point on the line corresponds to a number.
even
compensation
number line
Sum of values/number of values
22. Adding/subtracting decimals
constants
Line up decimal points
range
Original whole +/ amount of change
23. In 4x4=16  what is 4?
identity property
Part
digit
root numbers
24. Number divisible by 9
not equal
Sum of digits divisible by 9
Number of decimal places is total number of decimals places in factors multiplied
square number
25. To change a percent to a decimal
even number
Number w/o signs
Drop percent  move decimal point two place to left
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
26. A whole number such as 1  3  5 and so on that cannot be evenly divisible by 2
fraction
odd number
quotient
inverse property
27. A number that results from multiplying a factor by itself
square number
percent
Multiply by 100%
improper fraction
28. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
odd
terminating decimals
odd number
Number of desired outcomes/number of total possible outcomes
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?
difference
numerator
odd
Add zeros to decimals until all decimals have same number of digits
30. 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
(Amount of increase/original whole) x100%
constants
greatest common factor
31. Multipleevent probability
Probability for each event then multiply individual probabilities together
common denominator
quotient
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
32. Absolute value of number
Number w/o signs
expression
order of operations
exponents
33. The largest number in a group of numbers
improper fraction
even number
fraction
greatest
34. A number written in expanded form with the place values written in exponential form  E.g. 2432=2000+400+30+2
exponents
expanded form using exponents
distributive property
perfect square
35. A comparison of 2 numbers; one form is a fraction
Line up decimal points
ratio
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
square number
36. Able to be divided evenly (without a remainder)
irrational numbers
divisible
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
Sum of values/number of values
37. Dividing fractions
Invert second term  then multiply
rational numbers
identity property
Part
38. A number made up of a whole number and a fraction
odd number
(Amount of decrease/original whole) x100%
Multiply by 100%
mixed number
39. Reciprocal of number
ratio
1 dividing by number
proportion
square number
40. PEMDAS  Parentheses  Exponents  Multiplication & Division (L to R)  Addition & Subtraction (L to R)
fraction
order of operations
Divisible by 2 and 3
prime factorization
41. An equation showing 2 ratios are equal
ratio
percent
proportion
Last digit 0 or 5
42. Simplifying complex fractions: two methods
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
factor pair
fraction
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
43. Percent decrease
terminating decimals
range
(Amount of decrease/original whole) x100%
variables
44. Two factors together that are multiplied to equal a larger number.
exponents
greatest common factor
factor pair
repeating decimals
45. Two numbers or expressions that mean the same thing  E.g. 2/3=4/6
prime number
equivalent
ratio
least common multiple
46. To drop a percent
Divide by 100%
equivalent
digit
divisibility by 3 rule
47. The smallest number in a group of numbers
root numbers
least
inverse property
square number
48. The difference between the greatest and the least numbers in a set of data.
1 dividing by number
inverse property
range
(Amount of decrease/original whole) x100%
49. Average A per B
exponents
Total A/total B
Last digit 0 or 5
difference
50. To find the answer for; solve
evaluate
Sum of values/number of values
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