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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. Number divisible by 9
expression
Sum of digits divisible by 9
compensation
identity property
2. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
expanded form using exponents
Line up decimal points
constants
least common multiple
3. Simplifying complex fractions: two methods
equal
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Add zeros to decimals until all decimals have same number of digits
digit
4. The answer to a subtraction problem
mixed number
constants
Sum of digits divisible by 9
difference
5. 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.
Number w/o signs
root numbers
evaluate
compensation
6. Percent increase
distributive property
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%
Divide by 100%
7. New whole
Original whole +/- amount of change
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
mixed number
estimate
8. odd + odd
Invert second term - then multiply
order of operations
1 dividing by number
even
9. 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)
Original whole +/- amount of change
Multiply by 100%
decimal
associative property
10. Probability
Number of desired outcomes/number of total possible outcomes
difference
divisible
Last digit 0 or 5
11. 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)=
Divide out largest common factor
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
distributive property
Part
12. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
place value
quotient
Drop percent - move decimal point two place to left
13. Mode
repeating decimals
percent
commutative property
Value occurring most frequently
14. How much a number is worth
value
quotient
equal
expression
15. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
even number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
expanded form using exponents
product
16. Number divisible by 2
Last digit divisible by 2
repeating decimals
Total A/total B
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
17. In 4x4=16 - what is 4?
Line up decimal points
Invert second term - then multiply
Sum of digits divisible by 9
root numbers
18. Answer to a multiplication problem
range
value
product
even number
19. The smallest number in a group of numbers
equivalent
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
less than
least
20. 1/5 + 1/4=4/20 +5/20 and 20 is the...
(Amount of decrease/original whole) x100%
exponents
common denominator
range
21. odd + even
sum
factor
composite number
odd
22. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
least
even number
Sum of digits divisible by 9
even
23. To perform a calculation - E.g. 2+2=4
equal
compute
associative property
Probability for each event then multiply individual probabilities together
24. 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)
mixed number
commutative property
denominator
digit
25. Answer to a division problem
Reduce diagonally/vertically then multiply numerators and denominators
quotient
equal
Divide out largest common factor
26. A letter that represents a value that may change
equivalent
Multiply by 100%
percent
variables
27. 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
proportion
inverse property
divisibility by 3 rule
commutative property
28. To place a fraction in lowest terms
proportion
inverse property
variables
simplify
29. Relationship in which a number is smaller than another
less than
Part
least common multiple
sum
30. 8x8=64 What is 64?
(Amount of increase/original whole) x100%
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
equal
perfect square
31. Adding/subtracting fractions
exponents
numerator
repeating decimals
LCM is LCD
32. Multiplying fractions
inverse property
exponents
Reduce diagonally/vertically then multiply numerators and denominators
prime factorization
33. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Original whole +/- amount of change
proportion
estimate
common denominator
34. Percent x whole
Part
Value occurring most frequently
prime factorization
compute
35. The largest number in a group of numbers
order of operations
greatest
Part
even number
36. Able to be divided evenly (without a remainder)
range
equivalent
exponents
divisible
37. Reducing fractions
Divide out largest common factor
sum
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
square number
38. The greatest whole number that is a factor of two or more nonzero whole numbers
constants
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
Total A/total B
greatest common factor
39. To drop a percent
least
Divide by 100%
variables
inverse property
40. Properties of 0
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41. A fraction whose numerator is greater than its denominator
Divide by 100%
Sum of values/number of values
improper fraction
Number of desired outcomes/number of total possible outcomes
42. Absolute value of number
Number of desired outcomes/number of total possible outcomes
perfect square
Greater spread in values
Number w/o signs
43. To find the answer for; solve
denominator
evaluate
even number
decimal
44. A number that results from multiplying a factor by itself
simplify
percent
square number
inverse property
45. A shortcut for writing repeated multiplication
sum
greatest
exponents
Part
46. Percent decrease
improper fraction
(Amount of decrease/original whole) x100%
quotient
Sum of digits divisible by 3
47. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
rational numbers
terminating decimals
repeating decimals
48. Number divisible by 3
expression
product
Sum of digits divisible by 3
fraction
49. To change a percent to a decimal
denominator
compensation
Drop percent - move decimal point two place to left
Sum of digits divisible by 3
50. Number divisible by 6
mixed number
prime factorization
Divisible by 2 and 3
Part