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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 that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
Value occurring most frequently
Sum of digits divisible by 9
prime number
fraction
2. Number divisible by 6
Divisible by 2 and 3
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
equation
estimate
3. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
difference
whole number
perfect square
compatible numbers
4. 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)
rational numbers
associative property
product
exponents
5. Average A per B
Total A/total B
odd
Number of desired outcomes/number of total possible outcomes
Greater spread in values
6. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
equivalent
divisibility by 3 rule
less than
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
7. Relationship in which a number is smaller than another
Middle value
product
less than
Drop percent - move decimal point two place to left
8. 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
estimate
Middle value
Divide out largest common factor
9. Comparing positive fractions
inverse property
greatest common factor
1 dividing by number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
10. A number with one or more digits to the right of the decimal point - E.g. .33
decimal
prime factorization
LCM is LCD
Invert second term - then multiply
11. Comparing decimal fractions
Add zeros to decimals until all decimals have same number of digits
irrational numbers
equal
compensation
12. Multiplying decimals
sum
exponents
greater than
Number of decimal places is total number of decimals places in factors multiplied
13. To find a number that is close to an exact answer - E.g. 23+24 is around 50
place value
greater than
range
estimate
14. Multiple-event probability
Original whole +/- amount of change
Probability for each event then multiply individual probabilities together
Last two digits divisible by 4
Divide by 100%
15. 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
range
not equal
common denominator
irrational numbers
16. 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)
Sum of values/number of values
compute
commutative property
product
17. An equation showing 2 ratios are equal
quotient
perfect square
proportion
Number of desired outcomes/number of total possible outcomes
18. A value that does not change; any number
constants
greater than
1 dividing by number
Number w/o signs
19. A number that results from multiplying a factor by itself
factor pair
square number
whole number
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
20. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
Multiply by 100%
even number
greatest
sum
21. Answer to a multiplication problem
estimate
quotient
product
Line up decimal points
22. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
Sum of values/number of values
equivalent
perfect square
root numbers
23. 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?
least
factor pair
distributive property
denominator
24. A comparison of 2 numbers; one form is a fraction
ratio
value
Number w/o signs
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
25. 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
perfect square
inverse property
Last two digits divisible by 4
distributive property
26. Reducing fractions
Divide out largest common factor
less than
Number of desired outcomes/number of total possible outcomes
commutative property
27. Properties of 1 and -1
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28. Adding/subtracting decimals
even
Line up decimal points
composite number
rational numbers
29. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
prime factorization
compatible numbers
Last digit divisible by 2
Sum of values/number of values
30. Mode
Sum of digits divisible by 9
sum
(Amount of increase/original whole) x100%
Value occurring most frequently
31. Percent increase
(Amount of increase/original whole) x100%
Reduce diagonally/vertically then multiply numerators and denominators
distributive property
terminating decimals
32. Percent x whole
Drop percent - move decimal point two place to left
quotient
square number
Part
33. To drop a percent
1 dividing by number
range
Divide by 100%
terminating decimals
34. When a number is larger than the other number. Example 65 > 56
expression
Sum of digits divisible by 3
greater than
mixed number
35. The smallest number in a group of numbers
Drop percent - move decimal point two place to left
perfect square
least
greatest
36. odd + even
distributive property
greater than
order of operations
odd
37. The expression of a number as a product of prime factors; use a factor tree!
Add zeros to decimals until all decimals have same number of digits
prime factorization
fraction
improper fraction
38. A letter that represents a value that may change
Number w/o signs
factor pair
variables
Last digit divisible by 2
39. To make a percent
Multiply by 100%
Drop percent - move decimal point two place to left
Greater spread in values
Sum of digits divisible by 3
40. In 4x4=16 - what is 4?
identity property
associative property
root numbers
range
41. Number divisible by 4
equivalent
denominator
percent
Last two digits divisible by 4
42. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
Number of desired outcomes/number of total possible outcomes
(Amount of decrease/original whole) x100%
least common multiple
Total A/total B
43. Two factors together that are multiplied to equal a larger number.
factor pair
expanded form using exponents
equal
common denominator
44. The greatest whole number that is a factor of two or more nonzero whole numbers
greatest common factor
Last two digits divisible by 4
even
variables
45. 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
Invert second term - then multiply
(Amount of decrease/original whole) x100%
compatible numbers
identity property
46. New whole
digit
greatest
ratio
Original whole +/- amount of change
47. Average value
Sum of values/number of values
Number of desired outcomes/number of total possible outcomes
constants
common denominator
48. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
root numbers
expanded form using exponents
less than
proportion
49. To change a percent to a decimal
place value
sum
Drop percent - move decimal point two place to left
Add zeros to decimals until all decimals have same number of digits
50. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
decimal
numerator
place value