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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. Comparing decimal fractions
quotient
Invert second term - then multiply
compensation
Add zeros to decimals until all decimals have same number of digits
2. Number divisible by 6
identity property
quotient
not equal
Divisible by 2 and 3
3. A value that does not change; any number
constants
equal
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
(Amount of increase/original whole) x100%
4. Dividing decimals
less than
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
perfect square
inverse property
5. Percent x whole
Last digit divisible by 2
Part
quotient
Original whole +/- amount of change
6. A number with more than two factors
composite number
equation
greatest
rational numbers
7. A set of operators - numbers - variables and grouping symbols; no equal sign
identity property
factor pair
Divide out largest common factor
expression
8. Adding/subtracting fractions
LCM is LCD
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Number w/o signs
Number of decimal places is total number of decimals places in factors multiplied
9. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
product
even number
compensation
10. odd + odd
Number of desired outcomes/number of total possible outcomes
even
Divisible by 2 and 3
Number of decimal places is total number of decimals places in factors multiplied
11. How much a number is worth
denominator
(Amount of decrease/original whole) x100%
value
decimal
12. Average A per B
Total A/total B
equivalent
mixed number
1 dividing by number
13. A fraction whose numerator is greater than its denominator
even
improper fraction
Drop percent - move decimal point two place to left
least common multiple
14. The answer to a multiplication problem
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
rational numbers
order of operations
product
15. 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
commutative property
odd number
root numbers
16. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
divisible
even
not equal
17. 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
commutative property
identity property
common denominator
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
18. The smallest number in a group of numbers
least
compatible numbers
(Amount of decrease/original whole) x100%
identity property
19. 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.
compensation
Last digit 0 or 5
odd number
commutative property
20. A line for representing and graphing numbers. Each point on the line corresponds to a number.
Last two digits divisible by 4
Probability for each event then multiply individual probabilities together
digit
number line
21. New whole
associative property
denominator
LCM is LCD
Original whole +/- amount of change
22. Natural Numbers - Whole Numbers - Integers - Rational Numbers
compute
rational numbers
range
common denominator
23. Reciprocal of number
1 dividing by number
Original whole +/- amount of change
greater than
odd number
24. Able to be divided evenly (without a remainder)
Sum of digits divisible by 3
divisible
greater than
Drop percent - move decimal point two place to left
25. Multiple-event probability
Last two digits divisible by 4
compensation
terminating decimals
Probability for each event then multiply individual probabilities together
26. Multiplying decimals
Sum of digits divisible by 9
compatible numbers
Number of decimal places is total number of decimals places in factors multiplied
product
27. Number divisible by 3
identity property
Sum of digits divisible by 3
greatest common factor
compatible numbers
28. Multiplying fractions
repeating decimals
odd number
even
Reduce diagonally/vertically then multiply numerators and denominators
29. An equation showing 2 ratios are equal
compute
proportion
divisible
LCM is LCD
30. 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
quotient
variables
common denominator
31. 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?
distributive property
numerator
Divide out largest common factor
odd
32. A number with one or more digits to the right of the decimal point - E.g. .33
Number w/o signs
decimal
(Amount of decrease/original whole) x100%
Line up decimal points
33. Mode
Middle value
not equal
terminating decimals
Value occurring most frequently
34. Properties of 1 and -1
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35. The greatest whole number that is a factor of two or more nonzero whole numbers
odd
greatest common factor
percent
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
36. The answer to a subtraction problem
difference
proportion
prime number
product
37. To change a percent to a decimal
Drop percent - move decimal point two place to left
inverse property
Middle value
ratio
38. 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
compensation
commutative property
irrational numbers
perfect square
39. Number divisible by 9
Sum of digits divisible by 9
Probability for each event then multiply individual probabilities together
quotient
compute
40. Standard deviation: greater if...
Probability for each event then multiply individual probabilities together
(Amount of increase/original whole) x100%
root numbers
Greater spread in values
41. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
equivalent
place value
improper fraction
value
42. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
identity property
commutative property
least common multiple
decimal
43. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Middle value
irrational numbers
commutative property
terminating decimals
44. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
Multiply by 100%
order of operations
estimate
factor pair
45. Answer to a division problem
numerator
product
quotient
product
46. Number divisible by 4
Last two digits divisible by 4
Add zeros to decimals until all decimals have same number of digits
distributive property
prime factorization
47. To place a fraction in lowest terms
ratio
factor
numerator
simplify
48. Percent increase
divisibility by 3 rule
Original whole +/- amount of change
value
(Amount of increase/original whole) x100%
49. Percent decrease
Number of desired outcomes/number of total possible outcomes
identity property
terminating decimals
(Amount of decrease/original whole) x100%
50. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
odd
prime number
quotient
greatest common factor