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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. Number divisible by 6
Number of desired outcomes/number of total possible outcomes
Divisible by 2 and 3
Invert second term - then multiply
even number
2. A set of operators - numbers - variables and grouping symbols; no equal sign
place value
(Amount of decrease/original whole) x100%
Line up decimal points
expression
3. Simplifying complex fractions: two methods
compatible numbers
sum
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
compute
4. A number with more than two factors
Original whole +/- amount of change
greater than
number line
composite number
5. Mode
product
decimal
Value occurring most frequently
compensation
6. Adding/subtracting fractions
odd number
LCM is LCD
evaluate
greater than
7. Percent x whole
Part
Value occurring most frequently
difference
digit
8. In multiplication or addition - the order of two numbers may be switched around and the answer is the same. Ex: a+b = b+a. or (1x2) x 3=1x (2x3)
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Total A/total B
simplify
commutative property
9. A value that does not change; any number
product
Divide by 100%
constants
Number of desired outcomes/number of total possible outcomes
10. Percent increase
composite number
expanded form using exponents
(Amount of increase/original whole) x100%
Greater spread in values
11. The smallest number in a group of numbers
factor
factor pair
least
Part
12. Dividing fractions
Invert second term - then multiply
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
variables
Line up decimal points
13. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
sum
exponents
order of operations
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
14. Reducing fractions
proportion
Divide out largest common factor
decimal
product
15. How much a number is worth
Multiply by 100%
range
value
ratio
16. Absolute value of number
Number of decimal places is total number of decimals places in factors multiplied
Number w/o signs
range
Sum of digits divisible by 3
17. 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.
equal
Sum of values/number of values
compensation
Last digit 0 or 5
18. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
least common multiple
commutative property
exponents
(Amount of decrease/original whole) x100%
19. 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
order of operations
irrational numbers
greatest common factor
root numbers
20. In 4x4=16 - what is 4?
(Amount of increase/original whole) x100%
distributive property
root numbers
repeating decimals
21. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
Probability for each event then multiply individual probabilities together
place value
fraction
product
22. Natural Numbers - Whole Numbers - Integers - Rational Numbers
Divide by 100%
rational numbers
place value
identity property
23. Multiplying decimals
percent
even
Number of decimal places is total number of decimals places in factors multiplied
Multiply by 100%
24. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
rational numbers
equation
compatible numbers
Sum of digits divisible by 3
25. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
constants
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Number of desired outcomes/number of total possible outcomes
terminating decimals
26. To place a fraction in lowest terms
Probability for each event then multiply individual probabilities together
simplify
Total A/total B
square number
27. A number with one or more digits to the right of the decimal point - E.g. .33
numerator
composite number
decimal
simplify
28. A fraction whose numerator is greater than its denominator
Divisible by 2 and 3
improper fraction
Total A/total B
evaluate
29. Adding/subtracting decimals
divisibility by 3 rule
rational numbers
root numbers
Line up decimal points
30. The difference between the greatest and the least numbers in a set of data.
Invert second term - then multiply
terminating decimals
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
range
31. The greatest whole number that is a factor of two or more nonzero whole numbers
fraction
whole number
greatest common factor
percent
32. Percent decrease
mixed number
improper fraction
not equal
(Amount of decrease/original whole) x100%
33. New whole
even number
greatest common factor
equivalent
Original whole +/- amount of change
34. Average value
numerator
Line up decimal points
(Amount of increase/original whole) x100%
Sum of values/number of values
35. A letter that represents a value that may change
(Amount of decrease/original whole) x100%
denominator
variables
number line
36. Dividing decimals
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
repeating decimals
greater than
numerator
37. Standard deviation: greater if...
Invert second term - then multiply
distributive property
(Amount of decrease/original whole) x100%
Greater spread in values
38. To make a percent
factor
fraction
Multiply by 100%
not equal
39. Two expressions that are set equal to each other; a number sentence with an equal sign
expanded form using exponents
equation
sum
Divisible by 2 and 3
40. 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)=
Middle value
distributive property
sum
fraction
41. 1/5 + 1/4=4/20 +5/20 and 20 is the...
greatest common factor
not equal
common denominator
commutative property
42. Able to be divided evenly (without a remainder)
ratio
Divide by 100%
divisibility by 3 rule
divisible
43. 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)
composite number
ratio
square number
associative property
44. To perform a calculation - E.g. 2+2=4
Divide by 100%
difference
compute
sum
45. To change a percent to a decimal
equation
Drop percent - move decimal point two place to left
simplify
proportion
46. Answer to a division problem
quotient
composite number
associative property
equation
47. To find the answer for; solve
evaluate
less than
expression
Sum of values/number of values
48. Properties of 1 and -1
49. Relationship in which a number is smaller than another
compensation
value
even number
less than
50. To drop a percent
difference
order of operations
Divide by 100%
product