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Test your basic knowledge |
Number Sense Vocab
Start Test
Study First
Subjects
:
math
,
number-sense
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 letter that represents a value that may change
variables
Last two digits divisible by 4
expanded form using exponents
range
2. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
least
irrational numbers
order of operations
Number w/o signs
3. odd + even
Middle value
number line
odd
digit
4. 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?
least
denominator
improper fraction
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
5. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
composite number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
factor
6. Median
numerator
Middle value
simplify
fraction
7. A value that does not change; any number
constants
Original whole +/- amount of change
repeating decimals
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
8. Not identical or equivalent to
order of operations
not equal
sum
perfect square
9. The greatest whole number that is a factor of two or more nonzero whole numbers
less than
prime factorization
repeating decimals
greatest common factor
10. Standard deviation: greater if...
Original whole +/- amount of change
Greater spread in values
(Amount of increase/original whole) x100%
constants
11. Two expressions that are set equal to each other; a number sentence with an equal sign
distributive property
equation
proportion
mixed number
12. A line for representing and graphing numbers. Each point on the line corresponds to a number.
1 dividing by number
number line
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
(Amount of decrease/original whole) x100%
13. The answer to an addition problem
sum
not equal
factor
least common multiple
14. Able to be divided evenly (without a remainder)
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
divisible
Value occurring most frequently
(Amount of decrease/original whole) x100%
15. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
root numbers
repeating decimals
least common multiple
Probability for each event then multiply individual probabilities together
16. A number with more than two factors
Multiply by 100%
composite number
inverse property
Drop percent - move decimal point two place to left
17. Relationship in which a number is smaller than another
divisible
order of operations
less than
Sum of values/number of values
18. Be identical or equivalent to
not equal
compatible numbers
Sum of values/number of values
equal
19. 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?
numerator
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
not equal
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
20. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
digit
ratio
simplify
21. 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
Add zeros to decimals until all decimals have same number of digits
ratio
place value
22. Answer to a multiplication problem
product
least
difference
greater than
23. To perform a calculation - E.g. 2+2=4
difference
Multiply by 100%
compute
Divide out largest common factor
24. Dividing decimals
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Number of decimal places is total number of decimals places in factors multiplied
Last digit 0 or 5
constants
25. Absolute value of number
Number w/o signs
Divide out largest common factor
commutative property
product
26. A shortcut for writing repeated multiplication
sum
distributive property
exponents
square number
27. A comparison of 2 numbers; one form is a fraction
root numbers
(Amount of increase/original whole) x100%
mixed number
ratio
28. 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
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
proportion
inverse property
Multiply by 100%
29. Properties of 1 and -1
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30. 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
Sum of digits divisible by 3
product
identity property
not equal
31. Percent x whole
Part
Original whole +/- amount of change
least common multiple
sum
32. Comparing positive fractions
whole number
expanded form using exponents
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Divisible by 2 and 3
33. Number divisible by 9
Sum of digits divisible by 9
Part
percent
Probability for each event then multiply individual probabilities together
34. Multiplying fractions
composite number
least common multiple
proportion
Reduce diagonally/vertically then multiply numerators and denominators
35. The answer to a subtraction problem
difference
Value occurring most frequently
Probability for each event then multiply individual probabilities together
Divisible by 2 and 3
36. Adding/subtracting decimals
divisible
constants
variables
Line up decimal points
37. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
Middle value
decimal
whole number
Last two digits divisible by 4
38. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
Divide by 100%
odd number
fraction
rational numbers
39. The smallest number in a group of numbers
odd number
least common multiple
least
divisibility by 3 rule
40. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Line up decimal points
Last digit divisible by 2
estimate
decimal
41. A fraction whose numerator is greater than its denominator
Drop percent - move decimal point two place to left
Sum of digits divisible by 3
improper fraction
Multiply by 100%
42. Number divisible by 2
product
Last digit divisible by 2
factor
Sum of values/number of values
43. Number divisible by 5
difference
not equal
Reduce diagonally/vertically then multiply numerators and denominators
Last digit 0 or 5
44. Reducing fractions
Divide out largest common factor
prime number
Divide by 100%
Multiply by 100%
45. How much a number is worth
odd number
value
root numbers
Reduce diagonally/vertically then multiply numerators and denominators
46. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
irrational numbers
order of operations
even number
Sum of values/number of values
47. Average value
Part
Sum of values/number of values
Original whole +/- amount of change
LCM is LCD
48. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
not equal
repeating decimals
rational numbers
denominator
49. 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
variables
digit
Sum of digits divisible by 9
50. To place a fraction in lowest terms
Drop percent - move decimal point two place to left
less than
least common multiple
simplify
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