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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 letter that represents a value that may change
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
identity property
exponents
2. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
even
Reduce diagonally/vertically then multiply numerators and denominators
rational numbers
equivalent
3. Standard deviation: greater if...
square number
quotient
Greater spread in values
common denominator
4. The expression of a number as a product of prime factors; use a factor tree!
prime factorization
simplify
Multiply by 100%
greatest
5. Multiplying fractions
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Reduce diagonally/vertically then multiply numerators and denominators
perfect square
percent
6. 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?
irrational numbers
simplify
numerator
Original whole +/- amount of change
7. 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)
equation
associative property
commutative property
expression
8. Number divisible by 2
Last digit divisible by 2
constants
inverse property
prime factorization
9. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
factor
equal
least common multiple
value
10. When a number is larger than the other number. Example 65 > 56
identity property
greater than
proportion
expanded form using exponents
11. To find the answer for; solve
evaluate
Probability for each event then multiply individual probabilities together
digit
divisibility by 3 rule
12. Simplifying complex fractions: two methods
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
factor
composite number
factor pair
13. Mode
Value occurring most frequently
Number of decimal places is total number of decimals places in factors multiplied
inverse property
square number
14. A number that results from multiplying a factor by itself
odd number
Divisible by 2 and 3
equal
square number
15. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
equal
not equal
(Amount of increase/original whole) x100%
16. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
compensation
Middle value
Divisible by 2 and 3
fraction
17. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Middle value
place value
odd number
terminating decimals
18. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
proportion
distributive property
compatible numbers
digit
19. Average value
distributive property
number line
Sum of values/number of values
odd
20. Properties of 1 and -1
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21. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
simplify
terminating decimals
Line up decimal points
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
22. Percent increase
Divisible by 2 and 3
product
(Amount of increase/original whole) x100%
equation
23. Absolute value of number
prime number
divisible
Number w/o signs
equation
24. 1/5 + 1/4=4/20 +5/20 and 20 is the...
place value
product
Original whole +/- amount of change
common denominator
25. Number divisible by 5
composite number
Last digit 0 or 5
not equal
Divide by 100%
26. The difference between the greatest and the least numbers in a set of data.
Value occurring most frequently
square number
greater than
range
27. Be identical or equivalent to
Invert second term - then multiply
place value
equal
ratio
28. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
irrational numbers
whole number
Original whole +/- amount of change
odd number
29. The greatest whole number that is a factor of two or more nonzero whole numbers
Last two digits divisible by 4
estimate
quotient
greatest common factor
30. Properties of numbers btw -1 and 1
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31. 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?
whole number
denominator
compensation
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
32. A set of operators - numbers - variables and grouping symbols; no equal sign
LCM is LCD
expression
fraction
Invert second term - then multiply
33. A fraction whose numerator is greater than its denominator
factor
improper fraction
least common multiple
Divisible by 2 and 3
34. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
not equal
Add zeros to decimals until all decimals have same number of digits
quotient
35. Comparing decimal fractions
not equal
Add zeros to decimals until all decimals have same number of digits
Value occurring most frequently
Original whole +/- amount of change
36. A comparison of 2 numbers; one form is a fraction
ratio
digit
(Amount of decrease/original whole) x100%
irrational numbers
37. Reciprocal of number
(Amount of decrease/original whole) x100%
1 dividing by number
Sum of digits divisible by 3
digit
38. Multiplying decimals
order of operations
commutative property
Number of decimal places is total number of decimals places in factors multiplied
less than
39. An equation showing 2 ratios are equal
proportion
identity property
simplify
greatest common factor
40. The answer to a multiplication problem
repeating decimals
1 dividing by number
product
Greater spread in values
41. Percent x whole
equivalent
compute
identity property
Part
42. Average A per B
range
Reduce diagonally/vertically then multiply numerators and denominators
Total A/total B
repeating decimals
43. A value that does not change; any number
constants
product
variables
Last digit 0 or 5
44. Number divisible by 4
Last digit 0 or 5
Greater spread in values
root numbers
Last two digits divisible by 4
45. Two factors together that are multiplied to equal a larger number.
factor pair
constants
ratio
expression
46. To place a fraction in lowest terms
simplify
expanded form using exponents
1 dividing by number
Sum of digits divisible by 9
47. A number that is multiplied by another number to find a producr
difference
(Amount of decrease/original whole) x100%
Number w/o signs
factor
48. A number made up of a whole number and a 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
Last two digits divisible by 4
mixed number
denominator
49. Adding/subtracting fractions
LCM is LCD
percent
quotient
Number w/o signs
50. To change a percent to a decimal
Drop percent - move decimal point two place to left
Last digit divisible by 2
composite number
inverse property