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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. Dividing fractions
root numbers
Invert second term - then multiply
commutative property
divisible
2. 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
distributive property
expanded form using exponents
equal
3. Number divisible by 3
Sum of digits divisible by 3
percent
constants
Part
4. The expression of a number as a product of prime factors; use a factor tree!
Probability for each event then multiply individual probabilities together
constants
decimal
prime factorization
5. To change a percent to a decimal
Drop percent - move decimal point two place to left
(Amount of increase/original whole) x100%
Part
equation
6. A fraction whose numerator is greater than its denominator
improper fraction
rational numbers
equation
composite number
7. Simplifying complex fractions: two methods
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
evaluate
odd
common denominator
8. Adding/subtracting decimals
sum
Line up decimal points
decimal
Divide out largest common factor
9. Multiple-event probability
Greater spread in values
Probability for each event then multiply individual probabilities together
least common multiple
Sum of values/number of values
10. Multiplying decimals
Number of desired outcomes/number of total possible outcomes
simplify
Number of decimal places is total number of decimals places in factors multiplied
greater than
11. Average A per B
percent
repeating decimals
Total A/total B
factor
12. 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
least
irrational numbers
Probability for each event then multiply individual probabilities together
commutative property
13. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
prime number
Reduce diagonally/vertically then multiply numerators and denominators
divisible
associative property
14. odd + odd
Multiply by 100%
estimate
even
prime factorization
15. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
Last digit 0 or 5
inverse property
fraction
(Amount of decrease/original whole) x100%
16. The answer to a subtraction problem
Value occurring most frequently
difference
divisible
common denominator
17. To drop a percent
Value occurring most frequently
composite number
Divide by 100%
commutative property
18. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
estimate
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
equivalent
divisibility by 3 rule
19. Number divisible by 5
Last digit 0 or 5
whole number
compensation
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
20. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
prime number
compute
commutative property
21. An equation showing 2 ratios are equal
terminating decimals
proportion
equation
commutative property
22. To make a percent
greatest
Multiply by 100%
factor
number line
23. Standard deviation: greater if...
Greater spread in values
Value occurring most frequently
(Amount of increase/original whole) x100%
Divisible by 2 and 3
24. Comparing positive fractions
ratio
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
(Amount of increase/original whole) x100%
least common multiple
25. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
improper fraction
greatest common factor
common denominator
repeating decimals
26. Percent increase
(Amount of increase/original whole) x100%
Probability for each event then multiply individual probabilities together
Middle value
identity property
27. The greatest whole number that is a factor of two or more nonzero whole numbers
inverse property
greatest common factor
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Sum of values/number of values
28. The smallest number in a group of numbers
least
repeating decimals
exponents
equation
29. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
digit
evaluate
Line up decimal points
30. In 4x4=16 - what is 4?
Number of decimal places is total number of decimals places in factors multiplied
root numbers
Reduce diagonally/vertically then multiply numerators and denominators
place value
31. Dividing decimals
numerator
Divide out largest common factor
product
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
32. Number divisible by 9
compensation
Sum of digits divisible by 9
percent
greatest
33. Mode
Original whole +/- amount of change
Sum of digits divisible by 3
Value occurring most frequently
digit
34. The largest number in a group of numbers
greatest
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
order of operations
Multiply by 100%
35. The answer to an addition problem
Divide out largest common factor
Last two digits divisible by 4
sum
Divisible by 2 and 3
36. A value that does not change; any number
ratio
constants
compensation
distributive property
37. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
Sum of digits divisible by 9
Number of desired outcomes/number of total possible outcomes
divisibility by 3 rule
38. Percent decrease
odd
identity property
(Amount of decrease/original whole) x100%
improper fraction
39. To find a number that is close to an exact answer - E.g. 23+24 is around 50
associative property
estimate
Number of desired outcomes/number of total possible outcomes
exponents
40. Two factors together that are multiplied to equal a larger number.
divisibility by 3 rule
odd
inverse property
factor pair
41. How much a number is worth
value
denominator
Sum of digits divisible by 9
place value
42. Properties of numbers btw -1 and 1
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43. Median
Sum of digits divisible by 3
whole number
Middle value
inverse property
44. A number with more than two factors
composite number
Number w/o signs
sum
odd number
45. 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)
associative property
whole number
ratio
Reduce diagonally/vertically then multiply numerators and denominators
46. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
LCM is LCD
divisibility by 3 rule
less than
Original whole +/- amount of change
47. A number with one or more digits to the right of the decimal point - E.g. .33
Value occurring most frequently
decimal
compensation
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
48. odd + even
odd
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
exponents
49. 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
inverse property
place value
identity property
greater than
50. Answer to a division problem
equivalent
quotient
factor
expression