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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. Reciprocal of number
Value occurring most frequently
1 dividing by number
sum
number line
2. The answer to a subtraction problem
Line up decimal points
order of operations
difference
equation
3. To perform a calculation - E.g. 2+2=4
compute
(Amount of increase/original whole) x100%
greatest
expression
4. A shortcut for writing repeated multiplication
Divide out largest common factor
greater than
least
exponents
5. A number with more than two factors
order of operations
sum
composite number
constants
6. Two expressions that are set equal to each other; a number sentence with an equal sign
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
equation
whole number
Divisible by 2 and 3
7. Natural Numbers - Whole Numbers - Integers - Rational Numbers
Original whole +/- amount of change
rational numbers
square number
greatest common factor
8. The answer to a multiplication problem
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
product
Last two digits divisible by 4
9. Average value
associative property
Probability for each event then multiply individual probabilities together
Sum of values/number of values
terminating decimals
10. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
Multiply by 100%
compatible numbers
Divide by 100%
improper fraction
11. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
Sum of digits divisible by 9
Last digit 0 or 5
Original whole +/- amount of change
12. Be identical or equivalent to
equal
simplify
repeating decimals
Add zeros to decimals until all decimals have same number of digits
13. Simplifying complex fractions: two methods
rational numbers
compute
quotient
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
14. 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)
associative property
identity property
1 dividing by number
Number of decimal places is total number of decimals places in factors multiplied
15. To make a percent
greater than
Multiply by 100%
irrational numbers
Number of desired outcomes/number of total possible outcomes
16. 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?
Greater spread in values
Original whole +/- amount of change
numerator
prime number
17. Average A per B
Multiply by 100%
odd
greatest common factor
Total A/total B
18. Choosing numbers close to the numbers in a problem - and then adjusting the answer to compensate for the numbers chosen - E.g. 23 + 18 and 23+20=43 Since 2 was added to 18 to make 20 - we need to take 2 away from 43.
square number
whole number
Number w/o signs
compensation
19. How much a number is worth
Middle value
product
value
terminating decimals
20. To place a fraction in lowest terms
Greater spread in values
simplify
Multiply by 100%
odd
21. Answer to a multiplication problem
equation
equivalent
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
product
22. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
root numbers
terminating decimals
repeating decimals
greatest
23. Adding/subtracting fractions
prime number
Divide by 100%
product
LCM is LCD
24. Reducing fractions
Part
Divide out largest common factor
greatest
Drop percent - move decimal point two place to left
25. The expression of a number as a product of prime factors; use a factor tree!
terminating decimals
greatest common factor
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
prime factorization
26. A number made up of a whole number and a fraction
compatible numbers
mixed number
decimal
variables
27. Number divisible by 6
value
Divisible by 2 and 3
fraction
product
28. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
fraction
product
compensation
Part
29. To change a percent to a decimal
composite number
Drop percent - move decimal point two place to left
LCM is LCD
fraction
30. A number with one or more digits to the right of the decimal point - E.g. .33
Last digit 0 or 5
LCM is LCD
Sum of digits divisible by 9
decimal
31. 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)=
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
distributive property
order of operations
sum
32. odd + even
Greater spread in values
odd
Number of desired outcomes/number of total possible outcomes
ratio
33. Number divisible by 3
Number w/o signs
factor pair
LCM is LCD
Sum of digits divisible by 3
34. Mode
Value occurring most frequently
percent
associative property
compute
35. A line for representing and graphing numbers. Each point on the line corresponds to a number.
number line
variables
numerator
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
36. Two factors together that are multiplied to equal a larger number.
constants
expression
factor pair
Last digit 0 or 5
37. odd + odd
commutative property
repeating decimals
even
factor
38. When a number is larger than the other number. Example 65 > 56
ratio
greater than
expanded form using exponents
Sum of digits divisible by 3
39. Multiplying fractions
Reduce diagonally/vertically then multiply numerators and denominators
associative property
Number w/o signs
square number
40. Not identical or equivalent to
Line up decimal points
Divide by 100%
variables
not equal
41. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
Add zeros to decimals until all decimals have same number of digits
Multiply by 100%
Last two digits divisible by 4
42. 8x8=64 What is 64?
perfect square
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
expression
divisibility by 3 rule
43. The greatest whole number that is a factor of two or more nonzero whole numbers
greatest common factor
difference
compute
Add zeros to decimals until all decimals have same number of digits
44. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
common denominator
percent
whole number
greater than
45. Probability
LCM is LCD
range
Number w/o signs
Number of desired outcomes/number of total possible outcomes
46. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Original whole +/- amount of change
product
47. New whole
percent
ratio
Invert second term - then multiply
Original whole +/- amount of change
48. A comparison of 2 numbers; one form is a fraction
simplify
Middle value
distributive property
ratio
49. Percent increase
compatible numbers
least common multiple
(Amount of increase/original whole) x100%
decimal
50. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
equation
irrational numbers
greater than
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