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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. Median
compute
Middle value
rational numbers
Original whole +/- amount of change
2. 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
prime number
order of operations
Divisible by 2 and 3
3. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
Divisible by 2 and 3
Sum of digits divisible by 3
divisibility by 3 rule
quotient
4. Simplifying complex fractions: two methods
Add zeros to decimals until all decimals have same number of digits
difference
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
common denominator
5. A number with one or more digits to the right of the decimal point - E.g. .33
divisibility by 3 rule
expanded form using exponents
decimal
prime factorization
6. A shortcut for writing repeated multiplication
exponents
Number of decimal places is total number of decimals places in factors multiplied
identity property
range
7. To find a number that is close to an exact answer - E.g. 23+24 is around 50
estimate
Total A/total B
whole number
prime number
8. 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.
equation
compensation
factor pair
range
9. When a number is larger than the other number. Example 65 > 56
greater than
Greater spread in values
irrational numbers
common denominator
10. Percent decrease
prime factorization
compatible numbers
(Amount of decrease/original whole) x100%
distributive property
11. Able to be divided evenly (without a remainder)
Divide out largest common factor
Sum of digits divisible by 9
divisible
Original whole +/- amount of change
12. Adding/subtracting fractions
LCM is LCD
Line up decimal points
Last digit divisible by 2
factor
13. How much a number is worth
value
equation
Last two digits divisible by 4
Drop percent - move decimal point two place to left
14. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
equal
1 dividing by number
prime number
(Amount of decrease/original whole) x100%
15. Multiple-event probability
Multiply by 100%
denominator
Probability for each event then multiply individual probabilities together
least
16. An equation showing 2 ratios are equal
proportion
even
Middle value
denominator
17. Dividing fractions
perfect square
Invert second term - then multiply
equation
Divide out largest common factor
18. The answer to a multiplication problem
least common multiple
product
order of operations
not equal
19. 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?
proportion
Reduce diagonally/vertically then multiply numerators and denominators
denominator
Number of desired outcomes/number of total possible outcomes
20. Mode
Value occurring most frequently
ratio
distributive property
exponents
21. A number that is multiplied by another number to find a producr
factor
decimal
Last digit 0 or 5
Last digit divisible by 2
22. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
irrational numbers
root numbers
expanded form using exponents
23. To change a percent to a decimal
equal
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
estimate
Drop percent - move decimal point two place to left
24. Properties of 0
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25. The greatest whole number that is a factor of two or more nonzero whole numbers
greatest common factor
distributive property
odd
Divide out largest common factor
26. 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
Add zeros to decimals until all decimals have same number of digits
expression
expanded form using exponents
27. To make a percent
root numbers
Multiply by 100%
product
Number of decimal places is total number of decimals places in factors multiplied
28. A number that results from multiplying a factor by itself
square number
greatest common factor
product
Multiply by 100%
29. A comparison of 2 numbers; one form is a fraction
mixed number
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
ratio
not equal
30. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Value occurring most frequently
Greater spread in values
greatest
place value
31. Two expressions that are set equal to each other; a number sentence with an equal sign
Probability for each event then multiply individual probabilities together
equation
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
(Amount of decrease/original whole) x100%
32. To find the answer for; solve
evaluate
range
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
percent
33. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
decimal
estimate
odd
even number
34. In 4x4=16 - what is 4?
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
root numbers
least common multiple
divisibility by 3 rule
35. 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?
(Amount of decrease/original whole) x100%
numerator
Last digit divisible by 2
even
36. Percent increase
mixed number
Number of decimal places is total number of decimals places in factors multiplied
decimal
(Amount of increase/original whole) x100%
37. Relationship in which a number is smaller than another
less than
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
identity property
38. To drop a percent
Divide by 100%
distributive property
Part
digit
39. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Number of desired outcomes/number of total possible outcomes
Last digit divisible by 2
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
terminating decimals
40. New whole
inverse property
Sum of digits divisible by 9
Original whole +/- amount of change
range
41. 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
Middle value
Last two digits divisible by 4
inverse property
expanded form using exponents
42. Natural Numbers - Whole Numbers - Integers - Rational Numbers
expanded form using exponents
irrational numbers
equivalent
rational numbers
43. Be identical or equivalent to
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
irrational numbers
compensation
equal
44. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
percent
45. A value that does not change; any number
improper fraction
prime factorization
1 dividing by number
constants
46. To perform a calculation - E.g. 2+2=4
1 dividing by number
number line
compute
Part
47. The difference between the greatest and the least numbers in a set of data.
Value occurring most frequently
Divide by 100%
range
identity property
48. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
factor
numerator
49. A fraction out of 100 - %
estimate
even
percent
common denominator
50. The answer to an addition problem
even
sum
rational numbers
even number