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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 number that is multiplied by another number to find a producr
rational numbers
compatible numbers
factor
Number w/o signs
2. An equation showing 2 ratios are equal
least
proportion
mixed number
expression
3. The difference between the greatest and the least numbers in a set of data.
variables
prime factorization
range
(Amount of decrease/original whole) x100%
4. 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)
odd number
even
associative property
Sum of digits divisible by 9
5. A number that results from multiplying a factor by itself
inverse property
square number
sum
commutative property
6. The largest number in a group of numbers
Sum of digits divisible by 9
Number of decimal places is total number of decimals places in factors multiplied
greatest
compatible numbers
7. To change a percent to a decimal
fraction
perfect square
equation
Drop percent - move decimal point two place to left
8. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
Divide by 100%
greatest
constants
repeating decimals
9. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
expanded form using exponents
Drop percent - move decimal point two place to left
digit
sum
10. Number divisible by 3
equal
Sum of digits divisible by 3
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
11. A line for representing and graphing numbers. Each point on the line corresponds to a number.
greatest
Divide out largest common factor
number line
simplify
12. 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)=
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
Invert second term - then multiply
Sum of values/number of values
distributive property
13. To place a fraction in lowest terms
simplify
place value
exponents
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
14. Simplifying complex fractions: two methods
whole number
even
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
least
15. Percent increase
(Amount of increase/original whole) x100%
Add zeros to decimals until all decimals have same number of digits
odd number
odd
16. Dividing fractions
greater than
Invert second term - then multiply
estimate
order of operations
17. To perform a calculation - E.g. 2+2=4
compute
Divisible by 2 and 3
Sum of values/number of values
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
18. A letter that represents a value that may change
Sum of values/number of values
variables
difference
Number w/o signs
19. A number made up of a whole number and a fraction
mixed number
odd
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
common denominator
20. 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?
denominator
divisibility by 3 rule
prime factorization
Original whole +/- amount of change
21. Number divisible by 2
associative property
Total A/total B
ratio
Last digit divisible by 2
22. Comparing decimal fractions
percent
Add zeros to decimals until all decimals have same number of digits
Middle value
denominator
23. Two factors together that are multiplied to equal a larger number.
inverse property
Value occurring most frequently
factor pair
simplify
24. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
less than
exponents
place value
even
25. The answer to an addition problem
prime factorization
square number
perfect square
sum
26. Relationship in which a number is smaller than another
less than
value
proportion
square number
27. Number divisible by 5
Last digit 0 or 5
least
mixed number
common denominator
28. 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
irrational numbers
Sum of digits divisible by 3
compatible numbers
Last digit 0 or 5
29. Multiplying fractions
Reduce diagonally/vertically then multiply numerators and denominators
Divisible by 2 and 3
odd
expression
30. Natural Numbers - Whole Numbers - Integers - Rational Numbers
Add zeros to decimals until all decimals have same number of digits
distributive property
compute
rational numbers
31. The smallest number in a group of numbers
least
Number of decimal places is total number of decimals places in factors multiplied
prime number
place value
32. Adding/subtracting decimals
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Line up decimal points
Middle value
33. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
value
terminating decimals
expanded form using exponents
34. 8x8=64 What is 64?
perfect square
inverse property
(Amount of decrease/original whole) x100%
estimate
35. Average value
numerator
prime number
common denominator
Sum of values/number of values
36. A number with one or more digits to the right of the decimal point - E.g. .33
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
decimal
Greater spread in values
Divide out largest common factor
37. The expression of a number as a product of prime factors; use a factor tree!
number line
prime factorization
value
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
38. Comparing positive fractions
Number of desired outcomes/number of total possible outcomes
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
digit
1 dividing by number
39. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
denominator
number line
compatible numbers
equivalent
40. Not identical or equivalent to
(Amount of decrease/original whole) x100%
Part
not equal
rational numbers
41. Probability
denominator
Number of desired outcomes/number of total possible outcomes
variables
Value occurring most frequently
42. Number divisible by 9
odd
Sum of digits divisible by 9
number line
Divide by 100%
43. 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?
Middle value
numerator
expression
decimal
44. Answer to a multiplication problem
Number of decimal places is total number of decimals places in factors multiplied
product
simplify
Total A/total B
45. Percent x whole
odd number
Sum of digits divisible by 9
inverse property
Part
46. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
simplify
Part
Number of desired outcomes/number of total possible outcomes
terminating decimals
47. 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.
(Amount of decrease/original whole) x100%
compensation
common denominator
divisible
48. Multiple-event probability
commutative property
compatible numbers
Drop percent - move decimal point two place to left
Probability for each event then multiply individual probabilities together
49. Mode
(Amount of increase/original whole) x100%
Value occurring most frequently
associative property
perfect square
50. 1/5 + 1/4=4/20 +5/20 and 20 is the...
digit
commutative property
common denominator
exponents