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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. 1/5 + 1/4=4/20 +5/20 and 20 is the...
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
even number
Line up decimal points
common denominator
2. A line for representing and graphing numbers. Each point on the line corresponds to a number.
1 dividing by number
composite number
order of operations
number line
3. To make a percent
Sum of values/number of values
Multiply by 100%
inverse property
associative property
4. Standard deviation: greater if...
composite number
Greater spread in values
denominator
expression
5. Be identical or equivalent to
odd number
divisible
equal
commutative property
6. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
greatest common factor
commutative property
decimal
7. A comparison of 2 numbers; one form is a fraction
divisibility by 3 rule
ratio
irrational numbers
estimate
8. Dividing fractions
Invert second term - then multiply
range
Sum of digits divisible by 9
Drop percent - move decimal point two place to left
9. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
even number
Reduce diagonally/vertically then multiply numerators and denominators
denominator
fraction
10. 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)
Middle value
commutative property
decimal
identity property
11. Reciprocal of number
least common multiple
Sum of digits divisible by 3
1 dividing by number
expression
12. A fraction out of 100 - %
Total A/total B
distributive property
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
percent
13. To change a percent to a decimal
estimate
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Drop percent - move decimal point two place to left
constants
14. Able to be divided evenly (without a remainder)
divisible
denominator
Sum of values/number of values
repeating decimals
15. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
greatest common factor
(Amount of decrease/original whole) x100%
1 dividing by number
equivalent
16. Multiple-event probability
(Amount of increase/original whole) x100%
Drop percent - move decimal point two place to left
mixed number
Probability for each event then multiply individual probabilities together
17. 8x8=64 What is 64?
expression
value
greater than
perfect square
18. Answer to a division problem
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
quotient
estimate
divisibility by 3 rule
19. A number with one or more digits to the right of the decimal point - E.g. .33
greatest
divisible
decimal
prime factorization
20. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
compatible numbers
terminating decimals
number line
Original whole +/- amount of change
21. New whole
Original whole +/- amount of change
square number
Total A/total B
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
22. 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?
1 dividing by number
denominator
mixed number
factor pair
23. How much a number is worth
Number w/o signs
equal
value
irrational numbers
24. Answer to a multiplication problem
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
product
greater than
compute
25. 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
identity property
(Amount of increase/original whole) x100%
associative property
improper fraction
26. In 4x4=16 - what is 4?
quotient
Original whole +/- amount of change
root numbers
divisible
27. Adding/subtracting decimals
Line up decimal points
even number
Number of desired outcomes/number of total possible outcomes
equal
28. A shortcut for writing repeated multiplication
terminating decimals
Sum of values/number of values
exponents
Probability for each event then multiply individual probabilities together
29. The difference between the greatest and the least numbers in a set of data.
fraction
range
least common multiple
not equal
30. Natural Numbers - Whole Numbers - Integers - Rational Numbers
ratio
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
rational numbers
Number of desired outcomes/number of total possible outcomes
31. Not identical or equivalent to
distributive property
not equal
variables
even
32. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
place value
variables
equivalent
Part
33. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
product
identity property
odd number
divisible
34. A letter that represents a value that may change
Divide by 100%
proportion
range
variables
35. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
Line up decimal points
simplify
least common multiple
LCM is LCD
36. Simplifying complex fractions: two methods
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
compute
decimal
Divisible by 2 and 3
37. A set of operators - numbers - variables and grouping symbols; no equal sign
constants
less than
expression
inverse property
38. Median
square number
Last digit divisible by 2
fraction
Middle value
39. Properties of numbers btw -1 and 1
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40. Dividing decimals
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
equal
less than
Last digit 0 or 5
41. The answer to an addition problem
Number w/o signs
sum
root numbers
order of operations
42. To place a fraction in lowest terms
simplify
compatible numbers
factor pair
Sum of digits divisible by 9
43. The greatest whole number that is a factor of two or more nonzero whole numbers
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
greatest common factor
prime factorization
repeating decimals
44. Number divisible by 5
Last digit 0 or 5
even
range
greatest
45. 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
mixed number
estimate
Divisible by 2 and 3
46. odd + even
factor
even
odd
associative property
47. Number divisible by 4
odd number
less than
not equal
Last two digits divisible by 4
48. 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
least common multiple
compensation
numerator
49. A number that results from multiplying a factor by itself
prime number
factor
square number
Part
50. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
even number
divisibility by 3 rule
greatest
even
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