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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. 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?
perfect square
denominator
difference
improper fraction
2. The greatest whole number that is a factor of two or more nonzero whole numbers
Number of desired outcomes/number of total possible outcomes
equal
Last two digits divisible by 4
greatest common factor
3. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
odd number
prime factorization
number line
1 dividing by number
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)
Divide out largest common factor
inverse property
proportion
associative property
5. Number divisible by 5
equation
Last digit 0 or 5
irrational numbers
equal
6. Absolute value of number
numerator
factor pair
Number w/o signs
LCM is LCD
7. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
Sum of values/number of values
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
mixed number
compatible numbers
8. odd + even
mixed number
odd
perfect square
compute
9. 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
decimal
difference
Number of decimal places is total number of decimals places in factors multiplied
10. A letter that represents a value that may change
variables
Part
Multiply by 100%
Number w/o signs
11. Able to be divided evenly (without a remainder)
(Amount of increase/original whole) x100%
divisible
perfect square
Number w/o signs
12. odd + odd
even
even number
evaluate
percent
13. Average A per B
commutative property
Total A/total B
Line up decimal points
evaluate
14. To place a fraction in lowest terms
range
simplify
estimate
Divisible by 2 and 3
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)
Probability for each event then multiply individual probabilities together
least common multiple
commutative property
not equal
16. Probability
commutative property
proportion
Number of desired outcomes/number of total possible outcomes
expanded form using exponents
17. A shortcut for writing repeated multiplication
greater than
decimal
rational numbers
exponents
18. Percent increase
associative property
odd
(Amount of increase/original whole) x100%
prime factorization
19. The answer to a multiplication problem
Greater spread in values
product
prime factorization
not equal
20. Percent decrease
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
(Amount of decrease/original whole) x100%
common denominator
Original whole +/- amount of change
21. Adding/subtracting fractions
fraction
LCM is LCD
Last digit divisible by 2
Divisible by 2 and 3
22. Dividing decimals
associative property
less than
prime factorization
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
23. Comparing positive fractions
equal
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Original whole +/- amount of change
Divide by 100%
24. To find a number that is close to an exact answer - E.g. 23+24 is around 50
proportion
estimate
even number
less than
25. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
Divisible by 2 and 3
improper fraction
compensation
26. A number with more than two factors
Sum of digits divisible by 3
1 dividing by number
least
composite number
27. To perform a calculation - E.g. 2+2=4
Add zeros to decimals until all decimals have same number of digits
compute
identity property
odd number
28. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
Sum of values/number of values
prime number
Part
greatest
29. 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
expanded form using exponents
repeating decimals
mixed number
30. Multiple-event probability
Probability for each event then multiply individual probabilities together
even number
Divisible by 2 and 3
Greater spread in values
31. Properties of 0
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32. 1/5 + 1/4=4/20 +5/20 and 20 is the...
numerator
common denominator
greatest
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
33. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
prime number
even number
(Amount of decrease/original whole) x100%
compute
34. A number that results from multiplying a factor by itself
terminating decimals
proportion
square number
irrational numbers
35. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
Last two digits divisible by 4
irrational numbers
whole number
Total A/total B
36. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
Number w/o signs
compute
equivalent
(Amount of decrease/original whole) x100%
37. Answer to a multiplication problem
Invert second term - then multiply
prime factorization
product
equivalent
38. Number divisible by 3
Sum of digits divisible by 3
denominator
simplify
digit
39. Number divisible by 2
distributive property
Sum of values/number of values
Last digit divisible by 2
divisibility by 3 rule
40. Two expressions that are set equal to each other; a number sentence with an equal sign
Number w/o signs
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
equation
prime factorization
41. Reducing fractions
divisibility by 3 rule
Divide out largest common factor
greatest common factor
rational numbers
42. The answer to a subtraction problem
fraction
difference
compatible numbers
prime factorization
43. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
divisibility by 3 rule
simplify
digit
fraction
44. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
number line
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
order of operations
terminating decimals
45. Median
product
mixed number
simplify
Middle value
46. Dividing fractions
evaluate
Invert second term - then multiply
rational numbers
Multiply by 100%
47. The difference between the greatest and the least numbers in a set of data.
simplify
inverse property
compatible numbers
range
48. The smallest number in a group of numbers
least
variables
even
common denominator
49. Properties of numbers btw -1 and 1
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50. 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.
Reduce diagonally/vertically then multiply numerators and denominators
least
composite number
compensation