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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. The answer to an addition problem
not equal
sum
digit
proportion
2. A number that is multiplied by another number to find a producr
factor
value
ratio
Reduce diagonally/vertically then multiply numerators and denominators
3. 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)
irrational numbers
commutative property
factor
prime number
4. A set of operators - numbers - variables and grouping symbols; no equal sign
Divide out largest common factor
decimal
value
expression
5. New whole
Original whole +/- amount of change
equation
Sum of values/number of values
Reduce diagonally/vertically then multiply numerators and denominators
6. 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?
greater than
Greater spread in values
numerator
constants
7. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Part
distributive property
estimate
prime factorization
8. Median
decimal
Middle value
fraction
greatest
9. The answer to a multiplication problem
mixed number
exponents
distributive property
product
10. To place a fraction in lowest terms
Last two digits divisible by 4
factor pair
value
simplify
11. Natural Numbers - Whole Numbers - Integers - Rational Numbers
LCM is LCD
rational numbers
distributive property
denominator
12. 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
Number of desired outcomes/number of total possible outcomes
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
least common multiple
inverse property
13. Standard deviation: greater if...
Greater spread in values
denominator
Reduce diagonally/vertically then multiply numerators and denominators
identity property
14. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Greater spread in values
(Amount of decrease/original whole) x100%
terminating decimals
Sum of digits divisible by 3
15. 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
Invert second term - then multiply
compatible numbers
equal
16. A fraction out of 100 - %
compatible numbers
percent
Divide by 100%
Middle value
17. Able to be divided evenly (without a remainder)
divisible
prime factorization
number line
Line up decimal points
18. Number divisible by 6
Divisible by 2 and 3
root numbers
composite number
expanded form using exponents
19. Number divisible by 2
Last digit divisible by 2
equivalent
associative property
irrational numbers
20. Reciprocal of number
least common multiple
factor
value
1 dividing by number
21. Answer to a division problem
digit
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
quotient
distributive property
22. To find the answer for; solve
evaluate
terminating decimals
Original whole +/- amount of change
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
23. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
estimate
equation
factor pair
24. A comparison of 2 numbers; one form is a fraction
ratio
Sum of values/number of values
LCM is LCD
numerator
25. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
composite number
repeating decimals
divisible
Probability for each event then multiply individual probabilities together
26. To make a percent
odd number
compute
Multiply by 100%
Sum of digits divisible by 9
27. A number that results from multiplying a factor by itself
Number of desired outcomes/number of total possible outcomes
Greater spread in values
Last two digits divisible by 4
square number
28. Average value
not equal
odd
Sum of digits divisible by 3
Sum of values/number of values
29. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
Last digit divisible by 2
prime number
percent
proportion
30. Mode
Value occurring most frequently
greater than
Sum of values/number of values
(Amount of decrease/original whole) x100%
31. Multiplying decimals
distributive property
Last digit divisible by 2
(Amount of increase/original whole) x100%
Number of decimal places is total number of decimals places in factors multiplied
32. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
irrational numbers
Sum of digits divisible by 9
compute
least common multiple
33. Reducing fractions
compensation
Divide out largest common factor
ratio
estimate
34. 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.
inverse property
compensation
equivalent
terminating decimals
35. odd + odd
order of operations
difference
even
exponents
36. Two factors together that are multiplied to equal a larger number.
prime factorization
Reduce diagonally/vertically then multiply numerators and denominators
factor pair
square number
37. Adding/subtracting fractions
LCM is LCD
not equal
root numbers
even number
38. Properties of numbers btw -1 and 1
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39. Percent x whole
Divide by 100%
order of operations
equation
Part
40. odd + even
Value occurring most frequently
equation
commutative property
odd
41. Absolute value of number
Number w/o signs
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
Invert second term - then multiply
Sum of values/number of values
42. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
Divide out largest common factor
numerator
expanded form using exponents
digit
43. Dividing decimals
Invert second term - then multiply
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
1 dividing by number
even
44. Comparing positive fractions
proportion
quotient
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
divisibility by 3 rule
45. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
fraction
Original whole +/- amount of change
order of operations
exponents
46. Simplifying complex fractions: two methods
odd number
Sum of values/number of values
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
expression
47. Properties of 1 and -1
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48. How much a number is worth
order of operations
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
value
equivalent
49. The greatest whole number that is a factor of two or more nonzero whole numbers
greatest common factor
fraction
equation
Sum of digits divisible by 9
50. Average A per B
Number of desired outcomes/number of total possible outcomes
exponents
distributive property
Total A/total B