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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. A line for representing and graphing numbers. Each point on the line corresponds to a number.
estimate
number line
factor
proportion
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
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
greatest common factor
rational numbers
identity property
3. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
mixed number
greater than
least common multiple
divisible
4. Relationship in which a number is smaller than another
Number of decimal places is total number of decimals places in factors multiplied
divisible
less than
Last two digits divisible by 4
5. Mode
Value occurring most frequently
divisible
sum
digit
6. New whole
perfect square
Original whole +/- amount of change
denominator
Value occurring most frequently
7. Probability
Divisible by 2 and 3
Number of desired outcomes/number of total possible outcomes
improper fraction
Drop percent - move decimal point two place to left
8. To drop a percent
quotient
Divide by 100%
rational numbers
Divide out largest common factor
9. Not identical or equivalent to
not equal
Number w/o signs
Reduce diagonally/vertically then multiply numerators and denominators
Greater spread in values
10. A shortcut for writing repeated multiplication
repeating decimals
rational numbers
exponents
composite number
11. 1/5 + 1/4=4/20 +5/20 and 20 is the...
root numbers
irrational numbers
common denominator
Divisible by 2 and 3
12. Number divisible by 9
improper fraction
Sum of digits divisible by 9
Invert second term - then multiply
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
13. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Multiply by 100%
terminating decimals
LCM is LCD
identity property
14. Two factors together that are multiplied to equal a larger number.
factor pair
equation
decimal
1 dividing by number
15. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
improper fraction
factor
perfect square
16. In 4x4=16 - what is 4?
associative property
root numbers
product
repeating decimals
17. The difference between the greatest and the least numbers in a set of data.
range
compute
quotient
improper fraction
18. Percent x whole
compute
improper fraction
Part
range
19. To place a fraction in lowest terms
Divisible by 2 and 3
Value occurring most frequently
simplify
Last digit 0 or 5
20. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
odd number
value
denominator
prime factorization
21. Percent increase
evaluate
(Amount of increase/original whole) x100%
compatible numbers
improper fraction
22. Multiple-event probability
sum
Probability for each event then multiply individual probabilities together
numerator
Sum of digits divisible by 9
23. Simplifying complex fractions: two methods
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
decimal
Divide by 100%
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
24. The largest number in a group of numbers
Value occurring most frequently
greatest
digit
difference
25. 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)
LCM is LCD
Sum of digits divisible by 9
associative property
less than
26. A letter that represents a value that may change
Value occurring most frequently
product
variables
simplify
27. Adding/subtracting decimals
(Amount of increase/original whole) x100%
Line up decimal points
compensation
equivalent
28. Median
Middle value
digit
Number of decimal places is total number of decimals places in factors multiplied
product
29. odd + even
odd
compute
Middle value
less than
30. 8x8=64 What is 64?
Last two digits divisible by 4
factor pair
perfect square
product
31. The smallest number in a group of numbers
Sum of values/number of values
expression
odd
least
32. How much a number is worth
root numbers
value
inverse property
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
33. Comparing decimal fractions
number line
Add zeros to decimals until all decimals have same number of digits
equation
Drop percent - move decimal point two place to left
34. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
inverse property
place value
associative property
percent
35. Number divisible by 3
greater than
equal
Sum of digits divisible by 3
factor pair
36. A number that is multiplied by another number to find a producr
inverse property
factor
greater than
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
37. To perform a calculation - E.g. 2+2=4
compute
factor
Greater spread in values
Invert second term - then multiply
38. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
compensation
Probability for each event then multiply individual probabilities together
Total A/total B
whole number
39. Properties of 0
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40. Multiplying decimals
inverse property
Number of desired outcomes/number of total possible outcomes
composite number
Number of decimal places is total number of decimals places in factors multiplied
41. 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
irrational numbers
root numbers
product
perfect square
42. Number divisible by 4
equivalent
simplify
Last two digits divisible by 4
difference
43. Multiplying fractions
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
Reduce diagonally/vertically then multiply numerators and denominators
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
factor
44. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
expression
greater than
associative property
45. To change a percent to a decimal
Invert second term - then multiply
identity property
even
Drop percent - move decimal point two place to left
46. Be identical or equivalent to
whole number
equal
denominator
percent
47. A number that results from multiplying a factor by itself
improper fraction
square number
percent
equal
48. Standard deviation: greater if...
Reduce diagonally/vertically then multiply numerators and denominators
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Greater spread in values
simplify
49. 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
Line up decimal points
expanded form using exponents
ratio
50. A fraction out of 100 - %
terminating 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
Drop percent - move decimal point two place to left
percent