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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 number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
not equal
prime number
order of operations
proportion
2. Number divisible by 3
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Invert second term - then multiply
Sum of digits divisible by 3
root numbers
3. Multiple-event probability
Probability for each event then multiply individual probabilities together
Line up decimal points
factor pair
odd number
4. odd + even
factor pair
odd
quotient
distributive property
5. The answer to a subtraction problem
simplify
least common multiple
Part
difference
6. Percent x whole
Middle value
Part
Invert second term - then multiply
distributive property
7. To perform a calculation - E.g. 2+2=4
rational numbers
identity property
Divisible by 2 and 3
compute
8. To drop a percent
Divide by 100%
odd
product
even
9. The smallest number in a group of numbers
least
odd
Probability for each event then multiply individual probabilities together
difference
10. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
even
Original whole +/- amount of change
variables
divisibility by 3 rule
11. The answer to an addition problem
not equal
Multiply by 100%
associative property
sum
12. When a number is larger than the other number. Example 65 > 56
constants
greater than
Line up decimal points
Number w/o signs
13. 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
least
compatible numbers
irrational numbers
14. The greatest whole number that is a factor of two or more nonzero whole numbers
composite number
prime factorization
quotient
greatest common factor
15. The largest number in a group of numbers
greatest
equal
whole number
value
16. Two factors together that are multiplied to equal a larger number.
factor pair
Invert second term - then multiply
Sum of values/number of values
distributive property
17. 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)
odd number
(Amount of increase/original whole) x100%
Total A/total B
associative property
18. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
quotient
Last two digits divisible by 4
improper fraction
19. A set of operators - numbers - variables and grouping symbols; no equal sign
value
inverse property
less than
expression
20. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
common denominator
Probability for each event then multiply individual probabilities together
1 dividing by number
compatible numbers
21. An equation showing 2 ratios are equal
Add zeros to decimals until all decimals have same number of digits
place value
decimal
proportion
22. The expression of a number as a product of prime factors; use a factor tree!
prime factorization
least common multiple
Sum of digits divisible by 3
factor pair
23. Standard deviation: greater if...
Divisible by 2 and 3
Greater spread in values
constants
common denominator
24. 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
greatest
Add zeros to decimals until all decimals have same number of digits
(Amount of increase/original whole) x100%
identity property
25. Relationship in which a number is smaller than another
Last two digits divisible by 4
Sum of values/number of values
equal
less than
26. Median
Multiply by 100%
number line
Middle value
terminating decimals
27. Properties of numbers btw -1 and 1
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28. 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?
factor
percent
denominator
value
29. How much a number is worth
Divisible by 2 and 3
value
Last digit divisible by 2
not equal
30. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
1 dividing by number
Add zeros to decimals until all decimals have same number of digits
whole number
estimate
31. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
repeating decimals
rational numbers
factor
Number of decimal places is total number of decimals places in factors multiplied
32. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
composite number
equivalent
Number of desired outcomes/number of total possible outcomes
variables
33. A letter that represents a value that may change
ratio
equation
variables
associative property
34. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
ratio
sum
product
35. A number made up of a whole number and a fraction
commutative property
equivalent
mixed number
greater than
36. Reciprocal of number
1 dividing by number
Part
greatest common factor
evaluate
37. To change a percent to a decimal
Sum of values/number of values
inverse property
prime factorization
Drop percent - move decimal point two place to left
38. Probability
even
Number of desired outcomes/number of total possible outcomes
associative property
Sum of digits divisible by 3
39. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
exponents
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
fraction
improper fraction
40. To make a percent
Multiply by 100%
Sum of digits divisible by 3
common denominator
digit
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
factor pair
odd number
Divide out largest common factor
42. Number divisible by 2
even number
divisibility by 3 rule
digit
Last digit divisible by 2
43. Number divisible by 9
Sum of digits divisible by 9
odd number
(Amount of decrease/original whole) x100%
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
44. New whole
Original whole +/- amount of change
range
number line
prime number
45. Answer to a division problem
Last digit 0 or 5
quotient
Multiply by 100%
improper fraction
46. Adding/subtracting decimals
sum
Line up decimal points
Last digit 0 or 5
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
47. Number divisible by 5
numerator
expression
Last digit 0 or 5
order of operations
48. A number that is multiplied by another number to find a producr
Greater spread in values
not equal
factor
composite number
49. 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?
Number of decimal places is total number of decimals places in factors multiplied
less than
Last digit divisible by 2
numerator
50. Average A per B
Total A/total B
Part
exponents
Line up decimal points