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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. Be identical or equivalent to
value
Divide out largest common factor
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
equal
2. Natural Numbers - Whole Numbers - Integers - Rational Numbers
least common multiple
rational numbers
compatible numbers
identity property
3. A number that is multiplied by another number to find a producr
divisible
quotient
Probability for each event then multiply individual probabilities together
factor
4. 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
Line up decimal points
Drop percent - move decimal point two place to left
ratio
5. The answer to a subtraction problem
less than
least common multiple
difference
(Amount of increase/original whole) x100%
6. The greatest whole number that is a factor of two or more nonzero whole numbers
greatest common factor
terminating decimals
expanded form using exponents
rational numbers
7. An equation showing 2 ratios are equal
greatest common factor
even
Number w/o signs
proportion
8. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
inverse property
Probability for each event then multiply individual probabilities together
Divide out largest common factor
least common multiple
9. A number with more than two factors
composite number
Number w/o signs
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Divide out largest common factor
10. Answer to a division problem
equation
quotient
compensation
Last digit divisible by 2
11. 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
common denominator
Add zeros to decimals until all decimals have same number of digits
equal
12. Answer to a multiplication problem
least
product
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
Original whole +/- amount of change
13. A shortcut for writing repeated multiplication
exponents
Reduce diagonally/vertically then multiply numerators and denominators
compatible numbers
Sum of digits divisible by 9
14. Multiple-event probability
Probability for each event then multiply individual probabilities together
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
least
less than
15. Simplifying complex fractions: two methods
constants
Divide by 100%
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
perfect square
16. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
identity property
Greater spread in values
expanded form using exponents
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
17. Number divisible by 4
constants
Divisible by 2 and 3
distributive property
Last two digits divisible by 4
18. To perform a calculation - E.g. 2+2=4
compute
Divisible by 2 and 3
Value occurring most frequently
quotient
19. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
less than
compatible numbers
(Amount of increase/original whole) x100%
digit
20. Relationship in which a number is smaller than another
even
Total A/total B
prime factorization
less than
21. A fraction whose numerator is greater than its denominator
Last two digits divisible by 4
Value occurring most frequently
improper fraction
identity property
22. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
equation
common denominator
identity property
23. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Last digit divisible by 2
improper fraction
place value
prime factorization
24. 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.
compensation
compatible numbers
place value
percent
25. Reciprocal of number
expanded form using exponents
Last digit 0 or 5
percent
1 dividing by number
26. Mode
Value occurring most frequently
Total A/total B
(Amount of decrease/original whole) x100%
common denominator
27. Average A per B
Total A/total B
prime factorization
even
Value occurring most frequently
28. A letter that represents a value that may change
terminating decimals
Line up decimal points
variables
mixed number
29. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
equivalent
square number
denominator
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
30. Number divisible by 5
commutative property
inverse property
Last digit 0 or 5
Sum of digits divisible by 3
31. Number divisible by 9
odd
Sum of digits divisible by 9
square number
product
32. Reducing fractions
Divide out largest common factor
sum
Divide by 100%
place value
33. Percent decrease
(Amount of decrease/original whole) x100%
even number
Reduce diagonally/vertically then multiply numerators and denominators
factor pair
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
least
not equal
Original whole +/- amount of change
35. 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
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
irrational numbers
rational numbers
simplify
36. Percent increase
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
(Amount of increase/original whole) x100%
percent
Sum of digits divisible by 3
37. Dividing fractions
Invert second term - then multiply
equivalent
least common multiple
prime factorization
38. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
odd number
root numbers
equation
39. New whole
Original whole +/- amount of change
constants
Reduce diagonally/vertically then multiply numerators and denominators
range
40. Dividing decimals
common denominator
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Sum of digits divisible by 3
Greater spread in values
41. A comparison of 2 numbers; one form is a fraction
ratio
prime number
divisible
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
42. To change a percent to a decimal
associative property
Drop percent - move decimal point two place to left
Probability for each event then multiply individual probabilities together
range
43. Median
irrational numbers
equal
Middle value
Invert second term - then multiply
44. A number made up of a whole number and a fraction
mixed number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
quotient
denominator
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
Divisible by 2 and 3
evaluate
numerator
fraction
46. Percent x whole
numerator
distributive property
Part
Total A/total B
47. Properties of 1 and -1
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48. odd + even
odd
percent
Value occurring most frequently
Last two digits divisible by 4
49. To drop a percent
least
Sum of digits divisible by 9
(Amount of increase/original whole) x100%
Divide by 100%
50. The answer to an addition problem
sum
Number of decimal places is total number of decimals places in factors multiplied
Reduce diagonally/vertically then multiply numerators and denominators
less than