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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 with more than two factors
equivalent
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
composite number
exponents
2. Number divisible by 9
mixed number
Sum of digits divisible by 9
value
compatible numbers
3. Answer to a division problem
Sum of digits divisible by 3
Multiply by 100%
quotient
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
4. Properties of 0
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5. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
Middle value
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
odd number
6. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
even number
expanded form using exponents
least
greatest common factor
7. odd + even
Last digit divisible by 2
odd
variables
inverse property
8. To change a percent to a decimal
Drop percent - move decimal point two place to left
perfect square
Last digit 0 or 5
Probability for each event then multiply individual probabilities together
9. 1/5 + 1/4=4/20 +5/20 and 20 is the...
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
common denominator
expression
less than
10. A line for representing and graphing numbers. Each point on the line corresponds to a number.
product
number line
Divide by 100%
percent
11. 8x8=64 What is 64?
decimal
equal
product
perfect square
12. Dividing decimals
equivalent
Number w/o signs
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
LCM is LCD
13. Properties of numbers btw -1 and 1
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14. A comparison of 2 numbers; one form is a fraction
1 dividing by number
ratio
composite number
value
15. Number divisible by 6
product
Divisible by 2 and 3
Sum of digits divisible by 9
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
16. Adding/subtracting decimals
divisibility by 3 rule
Value occurring most frequently
Line up decimal points
expression
17. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
estimate
prime factorization
Probability for each event then multiply individual probabilities together
18. A number with one or more digits to the right of the decimal point - E.g. .33
irrational numbers
Greater spread in values
distributive property
decimal
19. Answer to a multiplication problem
least common multiple
rational numbers
product
decimal
20. 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)
estimate
square number
associative property
compatible numbers
21. To drop a percent
identity property
estimate
Divide by 100%
expanded form using exponents
22. A letter that represents a value that may change
variables
Greater spread in values
factor
decimal
23. Properties of 1 and -1
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24. 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
repeating decimals
mixed number
divisibility by 3 rule
identity property
25. 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?
ratio
numerator
greatest common factor
greater than
26. Dividing fractions
Number of desired outcomes/number of total possible outcomes
not equal
Invert second term - then multiply
Last digit divisible by 2
27. Natural Numbers - Whole Numbers - Integers - Rational Numbers
equal
mixed number
rational numbers
Invert second term - then multiply
28. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
inverse property
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
decimal
divisibility by 3 rule
29. Multiplying fractions
Reduce diagonally/vertically then multiply numerators and denominators
square number
least
factor pair
30. The smallest number in a group of numbers
even number
least
least common multiple
Probability for each event then multiply individual probabilities together
31. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
even
repeating decimals
LCM is LCD
Divide by 100%
32. A number that is multiplied by another number to find a producr
even
constants
Sum of digits divisible by 3
factor
33. Be identical or equivalent to
compensation
product
equal
quotient
34. A number that results from multiplying a factor by itself
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
square number
not equal
Multiply by 100%
35. 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
greatest
irrational numbers
odd number
36. Multiplying decimals
constants
Number of decimal places is total number of decimals places in factors multiplied
prime factorization
factor
37. To find the answer for; solve
greatest
evaluate
exponents
factor
38. Simplifying complex fractions: two methods
whole number
difference
Multiply by 100%
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
39. Median
less than
even
least common multiple
Middle value
40. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
Original whole +/- amount of change
expanded form using exponents
compensation
divisible
41. Probability
common denominator
Number of desired outcomes/number of total possible outcomes
equation
commutative property
42. How much a number is worth
not equal
constants
value
ratio
43. Standard deviation: greater if...
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Greater spread in values
Add zeros to decimals until all decimals have same number of digits
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
44. A shortcut for writing repeated multiplication
exponents
compatible numbers
evaluate
Last digit 0 or 5
45. When a number is larger than the other number. Example 65 > 56
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
Sum of values/number of values
greater than
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
46. An equation showing 2 ratios are equal
Reduce diagonally/vertically then multiply numerators and denominators
proportion
(Amount of increase/original whole) x100%
even
47. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
numerator
inverse property
odd number
(Amount of decrease/original whole) x100%
48. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
fraction
Sum of digits divisible by 3
odd number
order of operations
49. Percent x whole
Number of decimal places is total number of decimals places in factors multiplied
Part
prime factorization
whole number
50. Mode
compensation
Last digit 0 or 5
Sum of values/number of values
Value occurring most frequently