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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. To find a number that is close to an exact answer - E.g. 23+24 is around 50
mixed number
estimate
expanded form using exponents
Line up decimal points
2. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
Number of desired outcomes/number of total possible outcomes
digit
difference
variables
3. Number divisible by 6
Reduce diagonally/vertically then multiply numerators and denominators
LCM is LCD
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Divisible by 2 and 3
4. Able to be divided evenly (without a remainder)
LCM is LCD
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
greatest common factor
divisible
5. 1/5 + 1/4=4/20 +5/20 and 20 is the...
greater than
equal
estimate
common denominator
6. A line for representing and graphing numbers. Each point on the line corresponds to a number.
improper fraction
number line
least common multiple
product
7. How much a number is worth
digit
square number
Sum of digits divisible by 9
value
8. New whole
decimal
expanded form using exponents
Original whole +/- amount of change
commutative property
9. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
least common multiple
numerator
square number
root numbers
10. Dividing decimals
variables
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
greatest
quotient
11. The smallest number in a group of numbers
Original whole +/- amount of change
least
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
percent
12. In 4x4=16 - what is 4?
even
root numbers
decimal
product
13. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
prime factorization
expanded form using exponents
greatest common factor
Invert second term - then multiply
14. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
fraction
variables
denominator
15. Two expressions that are set equal to each other; a number sentence with an equal sign
denominator
expression
equation
Sum of digits divisible by 3
16. A shortcut for writing repeated multiplication
range
exponents
Value occurring most frequently
Part
17. Percent x whole
divisibility by 3 rule
least common multiple
Part
equation
18. Average A per B
Number w/o signs
Total A/total B
Value occurring most frequently
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
19. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
least common multiple
product
repeating decimals
equivalent
20. The answer to an addition problem
Probability for each event then multiply individual probabilities together
divisible
improper fraction
sum
21. Multiple-event probability
Probability for each event then multiply individual probabilities together
simplify
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
distributive property
22. Not identical or equivalent to
Last digit 0 or 5
not equal
equivalent
Sum of values/number of values
23. 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)=
distributive property
Last two digits divisible by 4
range
Multiply by 100%
24. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
compatible numbers
Add zeros to decimals until all decimals have same number of digits
Original whole +/- amount of change
25. To make a percent
Multiply by 100%
Sum of digits divisible by 3
fraction
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
26. 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
Last digit divisible by 2
range
prime factorization
27. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
estimate
expression
even number
divisibility by 3 rule
28. A number with more than two factors
numerator
composite number
Greater spread in values
fraction
29. A set of operators - numbers - variables and grouping symbols; no equal sign
associative property
ratio
divisibility by 3 rule
expression
30. Adding/subtracting decimals
odd
Line up decimal points
equation
Invert second term - then multiply
31. Mode
Value occurring most frequently
associative property
Sum of values/number of values
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
32. Two factors together that are multiplied to equal a larger number.
factor pair
common denominator
composite number
perfect square
33. Dividing fractions
equation
Invert second term - then multiply
Sum of digits divisible by 9
evaluate
34. A letter that represents a value that may change
root numbers
odd number
Divide out largest common factor
variables
35. A fraction whose numerator is greater than its denominator
Middle value
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
improper fraction
1 dividing by number
36. To place a fraction in lowest terms
number line
simplify
prime number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
37. 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)
commutative property
decimal
mixed number
variables
38. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
quotient
evaluate
order of operations
place value
39. Median
Middle value
Value occurring most frequently
identity property
estimate
40. Number divisible by 4
composite number
root numbers
Last two digits divisible by 4
improper fraction
41. 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
Invert second term - then multiply
less than
irrational numbers
42. Standard deviation: greater if...
Divide out largest common factor
Sum of digits divisible by 3
Greater spread in values
equal
43. Average value
Sum of values/number of values
denominator
Last digit divisible by 2
digit
44. Number divisible by 5
order of operations
Last digit 0 or 5
compensation
(Amount of decrease/original whole) x100%
45. A number made up of a whole number and a fraction
product
mixed number
Sum of digits divisible by 3
digit
46. Percent increase
digit
Number of decimal places is total number of decimals places in factors multiplied
(Amount of increase/original whole) x100%
Invert second term - then multiply
47. To change a percent to a decimal
divisibility by 3 rule
odd
Drop percent - move decimal point two place to left
percent
48. When a number is larger than the other number. Example 65 > 56
repeating decimals
percent
exponents
greater than
49. Relationship in which a number is smaller than another
exponents
less than
irrational numbers
Drop percent - move decimal point two place to left
50. Adding/subtracting fractions
even
irrational numbers
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
LCM is LCD