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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. Probability
Last digit divisible by 2
Number of desired outcomes/number of total possible outcomes
compensation
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
2. 1/5 + 1/4=4/20 +5/20 and 20 is the...
root numbers
decimal
Number of decimal places is total number of decimals places in factors multiplied
common denominator
3. Reciprocal of number
root numbers
even number
1 dividing by number
(Amount of decrease/original whole) x100%
4. 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)=
inverse property
distributive property
Greater spread in values
Last digit 0 or 5
5. To place a fraction in lowest terms
order of operations
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
LCM is LCD
simplify
6. Answer to a multiplication problem
(Amount of increase/original whole) x100%
not equal
order of operations
product
7. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
prime number
composite number
numerator
greatest
8. A shortcut for writing repeated multiplication
Reduce diagonally/vertically then multiply numerators and denominators
variables
exponents
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
9. Number divisible by 4
equivalent
Last two digits divisible by 4
constants
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
10. Simplifying complex fractions: two methods
even
Invert second term - then multiply
mixed number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
11. The largest number in a group of numbers
greatest
Number of decimal places is total number of decimals places in factors multiplied
improper fraction
simplify
12. To perform a calculation - E.g. 2+2=4
estimate
compute
composite number
denominator
13. Number divisible by 6
(Amount of decrease/original whole) x100%
simplify
Divisible by 2 and 3
(Amount of increase/original whole) x100%
14. How much a number is worth
Divide by 100%
value
commutative property
Sum of digits divisible by 9
15. The answer to a multiplication problem
Reduce diagonally/vertically then multiply numerators and denominators
product
compute
order of operations
16. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
proportion
digit
fraction
denominator
17. Adding/subtracting decimals
Line up decimal points
compute
constants
numerator
18. 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
common denominator
improper fraction
19. odd + odd
distributive property
equal
even
less than
20. A number made up of a whole number and a fraction
distributive property
less than
Total A/total B
mixed number
21. Median
expanded form using exponents
Middle value
associative property
Divide out largest common factor
22. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
(Amount of decrease/original whole) x100%
Reduce diagonally/vertically then multiply numerators and denominators
even number
Greater spread in values
23. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
terminating decimals
compute
greatest common factor
estimate
24. A letter that represents a value that may change
variables
terminating decimals
compute
expanded form using exponents
25. Not identical or equivalent to
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
not equal
numerator
difference
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
Number of desired outcomes/number of total possible outcomes
decimal
whole number
27. An equation showing 2 ratios are equal
proportion
odd
prime number
square number
28. 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
Part
composite number
simplify
29. Absolute value of number
greater than
Drop percent - move decimal point two place to left
inverse property
Number w/o signs
30. Answer to a division problem
Last digit divisible by 2
quotient
product
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
31. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
whole number
divisibility by 3 rule
LCM is LCD
compute
32. Percent x whole
difference
inverse property
Part
Sum of digits divisible by 9
33. A number that is multiplied by another number to find a producr
Sum of digits divisible by 3
factor
(Amount of increase/original whole) x100%
fraction
34. The expression of a number as a product of prime factors; use a factor tree!
prime factorization
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
compensation
Last digit divisible by 2
35. Percent increase
constants
(Amount of increase/original whole) x100%
expanded form using exponents
1 dividing by number
36. 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?
least
constants
denominator
divisibility by 3 rule
37. 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
(Amount of increase/original whole) x100%
inverse property
factor pair
Line up decimal points
38. 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.
even
compensation
improper fraction
least common multiple
39. To drop a percent
root numbers
inverse property
Multiply by 100%
Divide by 100%
40. New whole
distributive property
Original whole +/- amount of change
Part
divisible
41. Number divisible by 2
Add zeros to decimals until all decimals have same number of digits
Divide by 100%
expanded form using exponents
Last digit divisible by 2
42. A line for representing and graphing numbers. Each point on the line corresponds to a number.
Value occurring most frequently
number line
equation
variables
43. A comparison of 2 numbers; one form is a fraction
greatest
expanded form using exponents
ratio
divisibility by 3 rule
44. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
number line
Part
whole number
denominator
45. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
simplify
Greater spread in values
digit
less than
46. Adding/subtracting fractions
LCM is LCD
compensation
root numbers
expression
47. A number with more than two factors
prime number
composite number
Multiply by 100%
sum
48. Multiplying fractions
Reduce diagonally/vertically then multiply numerators and denominators
order of operations
terminating decimals
Divide by 100%
49. 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
Value occurring most frequently
Number w/o signs
odd
50. Able to be divided evenly (without a remainder)
divisible
common denominator
equivalent
Sum of values/number of values