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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. Dividing decimals
greatest common factor
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
even number
2. The greatest whole number that is a factor of two or more nonzero whole numbers
inverse property
expression
common denominator
greatest common factor
3. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
product
Add zeros to decimals until all decimals have same number of digits
ratio
whole number
4. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
terminating decimals
least common multiple
1 dividing by number
numerator
5. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
Value occurring most frequently
equation
quotient
even number
6. To perform a calculation - E.g. 2+2=4
inverse property
Multiply by 100%
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
compute
7. To find a number that is close to an exact answer - E.g. 23+24 is around 50
even
digit
estimate
Add zeros to decimals until all decimals have same number of digits
8. A number that is multiplied by another number to find a producr
factor
Invert second term - then multiply
greatest common factor
ratio
9. A number with more than two factors
Last two digits divisible by 4
composite number
Drop percent - move decimal point two place to left
factor pair
10. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
not equal
digit
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
11. The expression of a number as a product of prime factors; use a factor tree!
prime factorization
Last two digits divisible by 4
Number of decimal places is total number of decimals places in factors multiplied
greatest common factor
12. Number divisible by 5
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
decimal
Last digit 0 or 5
denominator
13. A comparison of 2 numbers; one form is a fraction
(Amount of decrease/original whole) x100%
root numbers
improper fraction
ratio
14. Reducing fractions
root numbers
number line
Divide out largest common factor
Line up decimal points
15. New whole
Greater spread in values
Original whole +/- amount of change
factor
Line up decimal points
16. Properties of 0
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17. Number divisible by 6
Divisible by 2 and 3
order of operations
decimal
Line up decimal points
18. A letter that represents a value that may change
square number
Part
denominator
variables
19. Percent increase
(Amount of increase/original whole) x100%
even
Sum of digits divisible by 9
even number
20. Median
constants
Middle value
equivalent
LCM is LCD
21. The smallest number in a group of numbers
Last digit 0 or 5
least
Sum of values/number of values
compensation
22. 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
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
Number of decimal places is total number of decimals places in factors multiplied
Number w/o signs
23. A value that does not change; any number
constants
equation
quotient
simplify
24. Answer to a multiplication problem
Number of decimal places is total number of decimals places in factors multiplied
product
irrational numbers
equation
25. An equation showing 2 ratios are equal
place value
proportion
Last digit divisible by 2
evaluate
26. Absolute value of number
Probability for each event then multiply individual probabilities together
simplify
Number w/o signs
Total A/total B
27. Reciprocal of number
even
variables
odd
1 dividing by number
28. Number divisible by 3
decimal
Sum of digits divisible by 3
divisible
expression
29. 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)
greatest
compatible numbers
Middle value
commutative property
30. Percent x whole
(Amount of increase/original whole) x100%
Number of decimal places is total number of decimals places in factors multiplied
Part
denominator
31. 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
proportion
not equal
identity property
perfect square
32. 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.
composite number
range
factor pair
compensation
33. To change a percent to a decimal
compute
Sum of values/number of values
Drop percent - move decimal point two place to left
ratio
34. The answer to a multiplication problem
product
whole number
factor
irrational numbers
35. Two factors together that are multiplied to equal a larger number.
expanded form using exponents
factor pair
even number
whole number
36. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
expanded form using exponents
Divide out largest common factor
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
37. 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)
numerator
Last digit divisible by 2
LCM is LCD
associative property
38. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
odd
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
compute
divisibility by 3 rule
39. Number divisible by 9
Sum of digits divisible by 9
even
expanded form using exponents
1 dividing by number
40. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
equivalent
improper fraction
expanded form using exponents
factor pair
41. Probability
proportion
product
Number of desired outcomes/number of total possible outcomes
Line up decimal points
42. Properties of numbers btw -1 and 1
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43. Average value
value
Sum of values/number of values
evaluate
(Amount of decrease/original whole) x100%
44. A fraction out of 100 - %
compute
fraction
Multiply by 100%
percent
45. In 4x4=16 - what is 4?
Total A/total B
Part
Divide out largest common factor
root numbers
46. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
least common multiple
Divisible by 2 and 3
product
odd number
47. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
prime number
Last digit 0 or 5
range
Divide by 100%
48. To make a percent
Multiply by 100%
least common multiple
mixed number
exponents
49. To place a fraction in lowest terms
simplify
equivalent
Number of decimal places is total number of decimals places in factors multiplied
terminating decimals
50. A shortcut for writing repeated multiplication
exponents
order of operations
Invert second term - then multiply
root numbers