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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 shortcut for writing repeated multiplication
root numbers
exponents
compensation
distributive property
2. The answer to a multiplication problem
Last digit divisible by 2
Reduce diagonally/vertically then multiply numerators and denominators
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
product
3. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
least common multiple
order of operations
distributive property
root numbers
4. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
even
compute
place value
5. The answer to a subtraction problem
repeating decimals
least common multiple
difference
estimate
6. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
product
whole number
even number
divisibility by 3 rule
7. odd + odd
Last two digits divisible by 4
even
square number
fraction
8. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
not equal
compatible numbers
fraction
Last digit divisible by 2
9. Probability
Number of desired outcomes/number of total possible outcomes
composite number
Divide out largest common factor
Last digit divisible by 2
10. Two factors together that are multiplied to equal a larger number.
denominator
factor pair
prime number
Divisible by 2 and 3
11. Reciprocal of number
1 dividing by number
Divide by 100%
greater than
Invert second term - then multiply
12. Reducing fractions
decimal
Divide out largest common factor
Divisible by 2 and 3
Sum of values/number of values
13. 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
evaluate
Original whole +/- amount of change
whole number
14. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Divide by 100%
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
terminating decimals
15. The largest number in a group of numbers
Sum of digits divisible by 3
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
greatest
not equal
16. To perform a calculation - E.g. 2+2=4
commutative property
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
compute
greatest common factor
17. Answer to a division problem
least common multiple
equivalent
quotient
LCM is LCD
18. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
product
prime number
decimal
even number
19. 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?
quotient
difference
numerator
compensation
20. Comparing positive fractions
Value occurring most frequently
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
equation
irrational numbers
21. 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.
compensation
Invert second term - then multiply
perfect square
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
22. A line for representing and graphing numbers. Each point on the line corresponds to a number.
expanded form using exponents
Last digit divisible by 2
number line
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
23. Number divisible by 4
Original whole +/- amount of change
Invert second term - then multiply
Last two digits divisible by 4
perfect square
24. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
repeating decimals
1 dividing by number
Number of desired outcomes/number of total possible outcomes
whole number
25. Number divisible by 6
Drop percent - move decimal point two place to left
not equal
identity property
Divisible by 2 and 3
26. An equation showing 2 ratios are equal
not equal
Sum of values/number of values
proportion
prime number
27. To place a fraction in lowest terms
decimal
variables
simplify
least common multiple
28. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
expanded form using exponents
square number
1 dividing by number
associative property
29. Number divisible by 9
odd number
quotient
Part
Sum of digits divisible by 9
30. The answer to an addition problem
sum
(Amount of decrease/original whole) x100%
not equal
Number of desired outcomes/number of total possible outcomes
31. Be identical or equivalent to
equal
compute
Last two digits divisible by 4
Total A/total B
32. A number made up of a whole number and a fraction
common denominator
mixed number
Divisible by 2 and 3
Divide by 100%
33. In 4x4=16 - what is 4?
root numbers
square number
(Amount of increase/original whole) x100%
composite number
34. Properties of 0
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35. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
decimal
inverse property
terminating decimals
36. Adding/subtracting fractions
Middle value
composite number
LCM is LCD
Drop percent - move decimal point two place to left
37. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Probability for each event then multiply individual probabilities together
common denominator
Line up decimal points
value
38. Percent increase
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
(Amount of increase/original whole) x100%
divisible
Original whole +/- amount of change
39. A value that does not change; any number
Value occurring most frequently
Total A/total B
constants
(Amount of decrease/original whole) x100%
40. 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?
associative property
denominator
estimate
Last digit divisible by 2
41. Percent x whole
digit
Value occurring most frequently
Part
rational numbers
42. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
constants
compatible numbers
Divide by 100%
percent
43. Simplifying complex fractions: two methods
ratio
root numbers
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Original whole +/- amount of change
44. Two expressions that are set equal to each other; a number sentence with an equal sign
less than
odd number
equation
whole number
45. Answer to a multiplication problem
expanded form using exponents
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
product
greater than
46. New whole
Original whole +/- amount of change
mixed number
Last digit 0 or 5
least common multiple
47. A number with more than two factors
root numbers
compensation
odd
composite number
48. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
Last two digits divisible by 4
equivalent
number line
composite number
49. Standard deviation: greater if...
Greater spread in values
Divide by 100%
commutative property
Number w/o signs
50. A number with one or more digits to the right of the decimal point - E.g. .33
variables
decimal
Probability for each event then multiply individual probabilities together
identity property