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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. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
commutative property
terminating decimals
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
quotient
2. Percent x whole
Part
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Invert second term - then multiply
improper fraction
3. To perform a calculation - E.g. 2+2=4
simplify
compute
common denominator
Divisible by 2 and 3
4. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
Probability for each event then multiply individual probabilities together
Sum of digits divisible by 3
expanded form using exponents
5. A number with more than two factors
(Amount of increase/original whole) x100%
expanded form using exponents
Last digit 0 or 5
composite number
6. Adding/subtracting fractions
factor pair
expanded form using exponents
LCM is LCD
(Amount of decrease/original whole) x100%
7. Percent increase
Total A/total B
Divisible by 2 and 3
terminating decimals
(Amount of increase/original whole) x100%
8. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
Part
Divide by 100%
order of operations
1 dividing by number
9. Relationship in which a number is smaller than another
whole number
identity property
less than
Invert second term - then multiply
10. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
digit
odd
whole number
Total A/total B
11. A number that is multiplied by another number to find a producr
number line
factor
even
denominator
12. Answer to a multiplication problem
simplify
decimal
equation
product
13. A letter that represents a value that may change
odd number
quotient
variables
digit
14. Average A per B
Total A/total B
even
prime factorization
decimal
15. Answer to a division problem
quotient
ratio
LCM is LCD
value
16. A value that does not change; any number
constants
odd number
associative property
proportion
17. To find a number that is close to an exact answer - E.g. 23+24 is around 50
estimate
irrational numbers
equal
sum
18. The largest number in a group of numbers
greatest
odd
Sum of values/number of values
Last two digits divisible by 4
19. A number that results from multiplying a factor by itself
range
less than
composite number
square number
20. Dividing fractions
Invert second term - then multiply
divisible
Sum of digits divisible by 9
variables
21. Percent decrease
least common multiple
evaluate
compatible numbers
(Amount of decrease/original whole) x100%
22. 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
Number of decimal places is total number of decimals places in factors multiplied
Divisible by 2 and 3
expanded form using exponents
23. Properties of 0
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24. Be identical or equivalent to
exponents
equal
least
Probability for each event then multiply individual probabilities together
25. To make a percent
equation
inverse property
Multiply by 100%
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
26. Properties of 1 and -1
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27. How much a number is worth
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
value
Divide out largest common factor
factor pair
28. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
exponents
(Amount of decrease/original whole) x100%
even
equivalent
29. Simplifying complex fractions: two methods
divisibility by 3 rule
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
order of operations
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
30. Number divisible by 3
Number of desired outcomes/number of total possible outcomes
less than
Sum of digits divisible by 3
order of operations
31. Number divisible by 4
Probability for each event then multiply individual probabilities together
Sum of digits divisible by 3
Last two digits divisible by 4
denominator
32. A fraction whose numerator is greater than its denominator
root numbers
number line
improper fraction
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
33. 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.
distributive property
Sum of digits divisible by 9
mixed number
compensation
34. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
Line up decimal points
(Amount of increase/original whole) x100%
expanded form using exponents
35. To find the answer for; solve
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
evaluate
divisibility by 3 rule
LCM is LCD
36. A set of operators - numbers - variables and grouping symbols; no equal sign
irrational numbers
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
distributive property
expression
37. Able to be divided evenly (without a remainder)
Divide out largest common factor
number line
divisible
inverse property
38. Number divisible by 2
Last digit divisible by 2
Divide by 100%
Line up decimal points
product
39. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
estimate
compatible numbers
denominator
expression
40. 8x8=64 What is 64?
Greater spread in values
Value occurring most frequently
irrational numbers
perfect square
41. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
least common multiple
quotient
Divide out largest common factor
equal
42. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
compute
expanded form using exponents
Reduce diagonally/vertically then multiply numerators and denominators
LCM is LCD
43. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
divisibility by 3 rule
composite number
percent
Sum of digits divisible by 9
44. Mode
associative property
1 dividing by number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Value occurring most frequently
45. Median
Middle value
percent
even
range
46. A shortcut for writing repeated multiplication
exponents
quotient
greatest common factor
1 dividing by number
47. Reciprocal of number
Number of decimal places is total number of decimals places in factors multiplied
factor
Value occurring most frequently
1 dividing by number
48. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
constants
digit
odd number
simplify
49. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
composite number
value
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
even number
50. 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
Reduce diagonally/vertically then multiply numerators and denominators
product
rational numbers