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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. 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
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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
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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