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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 smallest number in a group of numbers
number line
least
numerator
equal
2. The greatest whole number that is a factor of two or more nonzero whole numbers
divisibility by 3 rule
Greater spread in values
greatest common factor
Divide by 100%
3. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
distributive property
irrational numbers
compensation
place value
4. The answer to a subtraction problem
Middle value
expanded form using exponents
difference
divisibility by 3 rule
5. Average value
Sum of values/number of values
Divide out largest common factor
greater than
divisible
6. Able to be divided evenly (without a remainder)
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
divisible
equivalent
Sum of digits divisible by 3
7. Absolute value of number
Number w/o signs
quotient
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
distributive property
8. A fraction out of 100 - %
terminating decimals
Sum of digits divisible by 3
odd
percent
9. Number divisible by 4
expanded form using exponents
Greater spread in values
Last two digits divisible by 4
mixed number
10. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
variables
expanded form using exponents
range
common denominator
11. In 4x4=16 - what is 4?
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
place value
root numbers
equal
12. The answer to an addition problem
terminating decimals
equal
sum
improper fraction
13. Median
Middle value
even number
exponents
ratio
14. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
product
even number
Total A/total B
improper fraction
15. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
Sum of digits divisible by 9
greatest
commutative property
16. Be identical or equivalent to
prime number
Total A/total B
equal
denominator
17. To make a percent
Multiply by 100%
Last digit 0 or 5
rational numbers
Divide by 100%
18. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
compatible numbers
even
perfect square
Add zeros to decimals until all decimals have same number of digits
19. 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
variables
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
expanded form using exponents
20. 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
prime factorization
divisibility by 3 rule
Invert second term - then multiply
inverse property
21. To change a percent to a decimal
Drop percent - move decimal point two place to left
common denominator
LCM is LCD
value
22. Number divisible by 2
common denominator
decimal
Last digit divisible by 2
Sum of digits divisible by 3
23. Simplifying complex fractions: two methods
Sum of digits divisible by 3
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Invert second term - then multiply
24. 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)
Probability for each event then multiply individual probabilities together
associative property
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
exponents
25. 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.
ratio
digit
compensation
Reduce diagonally/vertically then multiply numerators and denominators
26. How much a number is worth
proportion
associative property
value
divisible
27. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
divisibility by 3 rule
Number w/o signs
Number of decimal places is total number of decimals places in factors multiplied
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
28. Comparing decimal fractions
Add zeros to decimals until all decimals have same number of digits
LCM is LCD
evaluate
Sum of values/number of values
29. The expression of a number as a product of prime factors; use a factor tree!
expanded form using exponents
fraction
Sum of values/number of values
prime factorization
30. Relationship in which a number is smaller than another
less than
factor pair
Greater spread in values
Multiply by 100%
31. Multiplying fractions
LCM is LCD
difference
Reduce diagonally/vertically then multiply numerators and denominators
equal
32. A comparison of 2 numbers; one form is a fraction
ratio
variables
equal
Number of desired outcomes/number of total possible outcomes
33. A fraction whose numerator is greater than its denominator
improper fraction
range
Reduce diagonally/vertically then multiply numerators and denominators
common denominator
34. New whole
composite number
improper fraction
Divide by 100%
Original whole +/- amount of change
35. Answer to a multiplication problem
denominator
odd number
product
expression
36. Adding/subtracting decimals
difference
less than
Line up decimal points
(Amount of increase/original whole) x100%
37. Reducing fractions
distributive property
odd number
Divide out largest common factor
Number w/o signs
38. To drop a percent
exponents
Divide by 100%
Total A/total B
even
39. The answer to a multiplication problem
compute
product
inverse property
Total A/total B
40. Probability
Number of desired outcomes/number of total possible outcomes
variables
even
rational numbers
41. odd + even
odd
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
Sum of digits divisible by 3
square number
42. An equation showing 2 ratios are equal
root numbers
common denominator
proportion
equal
43. Two factors together that are multiplied to equal a larger number.
factor pair
odd
expression
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
44. Reciprocal of number
Original whole +/- amount of change
digit
product
1 dividing by number
45. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
divisible
least common multiple
greatest
46. A shortcut for writing repeated multiplication
exponents
Greater spread in values
Number of decimal places is total number of decimals places in factors multiplied
product
47. Percent increase
less than
(Amount of increase/original whole) x100%
Sum of digits divisible by 9
Drop percent - move decimal point two place to left
48. odd + odd
even
percent
Last digit 0 or 5
(Amount of decrease/original whole) x100%
49. To find a number that is close to an exact answer - E.g. 23+24 is around 50
greatest common factor
estimate
place value
prime number
50. The difference between the greatest and the least numbers in a set of data.
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
square number
range
distributive property