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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. Comparing positive fractions
product
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
variables
Last digit divisible by 2
2. 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
inverse property
ratio
square number
evaluate
3. A shortcut for writing repeated multiplication
1 dividing by number
digit
Part
exponents
4. Percent increase
(Amount of increase/original whole) x100%
variables
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
simplify
5. Relationship in which a number is smaller than another
Divide by 100%
whole number
root numbers
less than
6. Probability
least common multiple
Number of desired outcomes/number of total possible outcomes
composite number
factor pair
7. Adding/subtracting fractions
Value occurring most frequently
place value
Sum of digits divisible by 3
LCM is LCD
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.
prime factorization
compensation
Multiply by 100%
Original whole +/- amount of change
9. A fraction whose numerator is greater than its denominator
compute
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
improper fraction
whole number
10. 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)
Divisible by 2 and 3
associative property
compatible numbers
compute
11. 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)
decimal
commutative property
constants
common denominator
12. Natural Numbers - Whole Numbers - Integers - Rational Numbers
difference
Value occurring most frequently
rational numbers
expression
13. Average A per B
Total A/total B
Divide by 100%
expanded form using exponents
Part
14. How much a number is worth
Add zeros to decimals until all decimals have same number of digits
inverse property
value
Value occurring most frequently
15. Properties of 0
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16. 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)=
variables
mixed number
commutative property
distributive property
17. Reducing fractions
divisible
place value
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
Divide out largest common factor
18. The smallest number in a group of numbers
common denominator
root numbers
least
decimal
19. Answer to a multiplication problem
product
composite number
Sum of values/number of values
irrational numbers
20. A number with one or more digits to the right of the decimal point - E.g. .33
(Amount of increase/original whole) x100%
divisible
decimal
numerator
21. Dividing fractions
1 dividing by number
Number of decimal places is total number of decimals places in factors multiplied
Invert second term - then multiply
compatible numbers
22. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
terminating decimals
Multiply by 100%
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
range
23. odd + even
odd
simplify
equal
Multiply by 100%
24. A number that is multiplied by another number to find a producr
divisibility by 3 rule
least common multiple
odd number
factor
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
Last digit 0 or 5
Line up decimal points
constants
identity property
26. A number made up of a whole number and a fraction
estimate
Number of decimal places is total number of decimals places in factors multiplied
mixed number
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
27. A line for representing and graphing numbers. Each point on the line corresponds to a number.
number line
LCM is LCD
Middle value
place value
28. Dividing decimals
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
simplify
terminating decimals
identity property
29. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
less than
compatible numbers
Total A/total B
even number
30. The difference between the greatest and the least numbers in a set of data.
equivalent
factor
range
product
31. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Add zeros to decimals until all decimals have same number of digits
common denominator
decimal
Reduce diagonally/vertically then multiply numerators and denominators
32. Be identical or equivalent to
equal
Divide by 100%
root numbers
Sum of digits divisible by 3
33. Comparing decimal fractions
Add zeros to decimals until all decimals have same number of digits
Divide out largest common factor
repeating decimals
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
34. To change a percent to a decimal
divisibility by 3 rule
factor
Drop percent - move decimal point two place to left
(Amount of increase/original whole) x100%
35. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
equivalent
Number of decimal places is total number of decimals places in factors multiplied
Total A/total B
Sum of digits divisible by 3
36. Absolute value of number
Last two digits divisible by 4
Add zeros to decimals until all decimals have same number of digits
Number w/o signs
fraction
37. Number divisible by 5
Last digit 0 or 5
variables
improper fraction
Greater spread in values
38. odd + odd
LCM is LCD
Divisible by 2 and 3
sum
even
39. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
terminating decimals
percent
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
40. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
even
Divide out largest common factor
mixed number
expanded form using exponents
41. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
Drop percent - move decimal point two place to left
(Amount of increase/original whole) x100%
compatible numbers
ratio
42. Mode
Value occurring most frequently
distributive property
product
Sum of digits divisible by 9
43. Percent x whole
fraction
less than
Part
greater than
44. 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
estimate
sum
Add zeros to decimals until all decimals have same number of digits
45. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
divisibility by 3 rule
compute
Multiply by 100%
difference
46. Reciprocal of number
1 dividing by number
Original whole +/- amount of change
Probability for each event then multiply individual probabilities together
Middle value
47. Two expressions that are set equal to each other; a number sentence with an equal sign
product
expression
equation
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
48. A letter that represents a value that may change
variables
range
Add zeros to decimals until all decimals have same number of digits
distributive property
49. Simplifying complex fractions: two methods
composite number
Invert second term - then multiply
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
compatible numbers
50. A value that does not change; any number
decimal
Invert second term - then multiply
whole number
constants
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