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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...
common denominator
range
rational numbers
even number
2. A value that does not change; any number
LCM is LCD
Multiply by 100%
rational numbers
constants
3. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
terminating decimals
expression
evaluate
repeating decimals
4. 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?
divisible
denominator
greater than
composite number
5. Answer to a multiplication problem
Number of desired outcomes/number of total possible outcomes
composite number
divisibility by 3 rule
product
6. Not identical or equivalent to
factor pair
greater than
not equal
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
7. Properties of 1 and -1
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8. Two factors together that are multiplied to equal a larger number.
product
Sum of values/number of values
prime factorization
factor pair
9. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
irrational numbers
even number
Last digit divisible by 2
even
10. A fraction out of 100 - %
percent
Middle value
associative property
Add zeros to decimals until all decimals have same number of digits
11. To find a number that is close to an exact answer - E.g. 23+24 is around 50
not equal
Greater spread in values
square number
estimate
12. A number with one or more digits to the right of the decimal point - E.g. .33
divisible
terminating decimals
Number of decimal places is total number of decimals places in factors multiplied
decimal
13. 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
product
composite number
variables
irrational numbers
14. Properties of 0
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15. A fraction whose numerator is greater than its denominator
least common multiple
prime number
improper fraction
(Amount of decrease/original whole) x100%
16. To drop a percent
digit
Divide by 100%
Number w/o signs
product
17. Average value
greater than
Sum of values/number of values
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Number of desired outcomes/number of total possible outcomes
18. Adding/subtracting fractions
commutative property
LCM is LCD
odd number
Multiply by 100%
19. Dividing decimals
numerator
perfect square
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
20. Percent x whole
Last digit divisible by 2
not equal
irrational numbers
Part
21. The smallest number in a group of numbers
least
Multiply by 100%
simplify
even number
22. 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.
product
compensation
fraction
product
23. To change a percent to a decimal
(Amount of decrease/original whole) x100%
common denominator
order of operations
Drop percent - move decimal point two place to left
24. Percent decrease
Original whole +/- amount of change
Total A/total B
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
(Amount of decrease/original whole) x100%
25. A comparison of 2 numbers; one form is a fraction
Last digit 0 or 5
ratio
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
sum
26. A line for representing and graphing numbers. Each point on the line corresponds to a number.
number line
Part
value
composite number
27. A number that is multiplied by another number to find a producr
factor
even number
compensation
equivalent
28. Probability
equation
Number of desired outcomes/number of total possible outcomes
Line up decimal points
Add zeros to decimals until all decimals have same number of digits
29. The greatest whole number that is a factor of two or more nonzero whole numbers
numerator
product
Divide out largest common factor
greatest common factor
30. 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
numerator
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
divisible
inverse property
31. A letter that represents a value that may change
Sum of digits divisible by 3
compute
identity property
variables
32. A number made up of a whole number and a fraction
mixed number
Sum of values/number of values
divisible
prime number
33. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
equivalent
(Amount of decrease/original whole) x100%
improper fraction
expanded form using exponents
34. 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
compensation
evaluate
irrational numbers
35. odd + odd
divisible
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
even
Multiply by 100%
36. Properties of numbers btw -1 and 1
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37. The difference between the greatest and the least numbers in a set of data.
range
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
odd number
equal
38. Be identical or equivalent to
expression
difference
range
equal
39. The answer to an addition problem
odd
Last digit divisible by 2
Line up decimal points
sum
40. Reducing fractions
mixed number
improper fraction
(Amount of increase/original whole) x100%
Divide out largest common factor
41. 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)
equivalent
associative property
least
Last digit divisible by 2
42. Natural Numbers - Whole Numbers - Integers - Rational Numbers
greater than
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Sum of digits divisible by 3
rational numbers
43. 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
divisible
identity property
number line
whole number
44. The largest number in a group of numbers
factor
range
composite number
greatest
45. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
divisibility by 3 rule
Middle value
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
1 dividing by number
46. Two expressions that are set equal to each other; a number sentence with an equal sign
terminating decimals
square number
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
equation
47. Answer to a division problem
terminating decimals
sum
least common multiple
quotient
48. To make a percent
number line
product
Multiply by 100%
variables
49. odd + even
fraction
inverse property
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
odd
50. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
identity property
prime number
compatible numbers
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend