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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 fraction out of 100 - %
percent
exponents
even number
divisibility by 3 rule
2. Percent decrease
(Amount of decrease/original whole) x100%
Last two digits divisible by 4
irrational numbers
difference
3. Be identical or equivalent to
simplify
Last digit divisible by 2
equal
Invert second term - then multiply
4. A comparison of 2 numbers; one form is a fraction
prime number
ratio
compatible numbers
equivalent
5. An equation showing 2 ratios are equal
difference
proportion
odd number
variables
6. Multiple-event probability
Probability for each event then multiply individual probabilities together
(Amount of increase/original whole) x100%
mixed number
equal
7. The answer to a subtraction problem
difference
associative property
Total A/total B
whole number
8. To change a percent to a decimal
Drop percent - move decimal point two place to left
perfect square
factor pair
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
9. The smallest number in a group of numbers
prime number
range
least
product
10. The expression of a number as a product of prime factors; use a factor tree!
Number of decimal places is total number of decimals places in factors multiplied
prime factorization
(Amount of increase/original whole) x100%
composite number
11. Median
Middle value
perfect square
fraction
numerator
12. 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)=
distributive property
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
factor
decimal
13. A fraction whose numerator is greater than its denominator
expanded form using exponents
constants
improper fraction
greatest common factor
14. A shortcut for writing repeated multiplication
square number
rational numbers
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
exponents
15. 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)
commutative property
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
Invert second term - then multiply
compensation
16. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
divisibility by 3 rule
digit
not equal
compensation
17. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
expression
whole number
evaluate
distributive property
18. Answer to a division problem
estimate
least
quotient
Probability for each event then multiply individual probabilities together
19. Number divisible by 2
range
digit
constants
Last digit divisible by 2
20. Percent increase
numerator
even number
equation
(Amount of increase/original whole) x100%
21. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
product
least
least common multiple
22. The difference between the greatest and the least numbers in a set of data.
range
Total A/total B
Part
difference
23. Comparing decimal fractions
constants
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Add zeros to decimals until all decimals have same number of digits
LCM is LCD
24. Number divisible by 4
Middle value
Last digit divisible by 2
Last two digits divisible by 4
(Amount of decrease/original whole) x100%
25. To make a percent
Multiply by 100%
equation
Number w/o signs
whole number
26. 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
rational numbers
1 dividing by number
identity property
not equal
27. Mode
equation
odd number
Multiply by 100%
Value occurring most frequently
28. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
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
root numbers
value
place value
29. Properties of 0
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30. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
decimal
distributive property
estimate
repeating decimals
31. A number made up of a whole number and a fraction
mixed number
Invert second term - then multiply
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
variables
32. Adding/subtracting decimals
Line up decimal points
proportion
Last two digits divisible by 4
Drop percent - move decimal point two place to left
33. Reducing fractions
product
ratio
Divide out largest common factor
Number of decimal places is total number of decimals places in factors multiplied
34. Number divisible by 9
Value occurring most frequently
Sum of digits divisible by 9
greater than
Line up decimal points
35. Properties of 1 and -1
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36. To place a fraction in lowest terms
equal
repeating decimals
simplify
Last digit divisible by 2
37. 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
Part
irrational numbers
mixed number
difference
38. To drop a percent
Divide by 100%
Line up decimal points
prime number
least common multiple
39. odd + even
ratio
Sum of digits divisible by 9
distributive property
odd
40. To perform a calculation - E.g. 2+2=4
divisibility by 3 rule
Last digit divisible by 2
greater than
compute
41. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
inverse property
terminating decimals
least common multiple
expanded form using exponents
42. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
Multiply by 100%
whole number
numerator
digit
43. Probability
associative property
least
simplify
Number of desired outcomes/number of total possible outcomes
44. Multiplying fractions
order of operations
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Reduce diagonally/vertically then multiply numerators and denominators
Last digit 0 or 5
45. A letter that represents a value that may change
compute
Original whole +/- amount of change
variables
value
46. To find the answer for; solve
evaluate
denominator
composite number
compute
47. 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?
denominator
irrational numbers
Line up decimal points
proportion
48. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
compatible numbers
even
estimate
49. Adding/subtracting fractions
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
LCM is LCD
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
factor
50. 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)
constants
even number
associative property
inverse property