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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 whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
Number of decimal places is total number of decimals places in factors multiplied
expression
denominator
odd number
2. Dividing fractions
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Invert second term - then multiply
common denominator
repeating decimals
3. 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
perfect square
Divide out largest common factor
identity property
repeating decimals
4. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
divisible
equivalent
percent
Invert second term - then multiply
5. A number that is multiplied by another number to find a producr
mixed number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
(Amount of increase/original whole) x100%
factor
6. The answer to a multiplication problem
composite number
product
proportion
Reduce diagonally/vertically then multiply numerators and denominators
7. To find a number that is close to an exact answer - E.g. 23+24 is around 50
improper fraction
not equal
estimate
whole number
8. Number divisible by 4
greater than
ratio
Last two digits divisible by 4
(Amount of decrease/original whole) x100%
9. Adding/subtracting decimals
value
Line up decimal points
less than
difference
10. Answer to a division problem
not equal
sum
Invert second term - then multiply
quotient
11. 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.
perfect square
Number w/o signs
simplify
compensation
12. A number that results from multiplying a factor by itself
square number
irrational numbers
Invert second term - then multiply
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
13. A number with more than two factors
Sum of digits divisible by 3
Total A/total B
composite number
value
14. A comparison of 2 numbers; one form is a fraction
compensation
ratio
root numbers
Sum of values/number of values
15. Dividing decimals
denominator
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
numerator
simplify
16. Properties of numbers btw -1 and 1
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17. Natural Numbers - Whole Numbers - Integers - Rational Numbers
equation
prime number
rational numbers
factor pair
18. 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
Add zeros to decimals until all decimals have same number of digits
divisibility by 3 rule
estimate
19. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
mixed number
prime number
(Amount of increase/original whole) x100%
divisibility by 3 rule
20. To find the answer for; solve
evaluate
whole number
1 dividing by number
Last digit divisible by 2
21. Number divisible by 3
Sum of digits divisible by 3
Last digit divisible by 2
terminating decimals
numerator
22. Be identical or equivalent to
equal
percent
Sum of digits divisible by 3
factor
23. A fraction whose numerator is greater than its denominator
fraction
Sum of values/number of values
improper fraction
Greater spread in values
24. Number divisible by 6
terminating decimals
Divisible by 2 and 3
whole number
fraction
25. A letter that represents a value that may change
Line up decimal points
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
variables
Divide out largest common factor
26. Number divisible by 2
Number w/o signs
commutative property
Divide by 100%
Last digit divisible by 2
27. An equation showing 2 ratios are equal
common denominator
Multiply by 100%
Total A/total B
proportion
28. Multiplying fractions
evaluate
variables
constants
Reduce diagonally/vertically then multiply numerators and denominators
29. The greatest whole number that is a factor of two or more nonzero whole numbers
LCM is LCD
greatest common factor
repeating decimals
simplify
30. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
place value
estimate
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
improper fraction
31. A number with one or more digits to the right of the decimal point - E.g. .33
Original whole +/- amount of change
least common multiple
Multiply by 100%
decimal
32. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
identity property
decimal
expanded form using exponents
Original whole +/- amount of change
33. odd + even
Greater spread in values
least common multiple
sum
odd
34. Percent increase
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 number
(Amount of increase/original whole) x100%
ratio
35. 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?
denominator
expanded form using exponents
Drop percent - move decimal point two place to left
terminating decimals
36. Percent x whole
Reduce diagonally/vertically then multiply numerators and denominators
inverse property
Part
expanded form using exponents
37. Average value
Line up decimal points
composite number
root numbers
Sum of values/number of values
38. The difference between the greatest and the least numbers in a set of data.
range
associative property
Last digit 0 or 5
factor pair
39. Simplifying complex fractions: two methods
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
value
Last two digits divisible by 4
40. Able to be divided evenly (without a remainder)
divisible
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Sum of digits divisible by 3
variables
41. The answer to an addition problem
sum
compensation
estimate
prime factorization
42. To place a fraction in lowest terms
identity property
simplify
Total A/total B
(Amount of increase/original whole) x100%
43. Number divisible by 9
1 dividing by number
Sum of digits divisible by 9
sum
prime number
44. Not identical or equivalent to
not equal
denominator
Sum of digits divisible by 3
Part
45. 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?
numerator
perfect square
factor
(Amount of decrease/original whole) x100%
46. 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
inverse property
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
improper fraction
47. The smallest number in a group of numbers
exponents
least
expression
Multiply by 100%
48. A shortcut for writing repeated multiplication
quotient
Sum of digits divisible by 9
exponents
simplify
49. A fraction out of 100 - %
percent
greatest common factor
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
50. Reducing fractions
least
Divide out largest common factor
Part
whole number