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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. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
least
factor
compatible numbers
numerator
2. A comparison of 2 numbers; one form is a fraction
Original whole +/- amount of change
numerator
compute
ratio
3. Probability
(Amount of increase/original whole) x100%
Number of desired outcomes/number of total possible outcomes
Last digit divisible by 2
percent
4. 1/5 + 1/4=4/20 +5/20 and 20 is the...
order of operations
common denominator
proportion
identity property
5. Not identical or equivalent to
Last two digits divisible by 4
prime factorization
expanded form using exponents
not equal
6. Answer to a division problem
less than
quotient
expression
fraction
7. Average A per B
sum
greater than
Total A/total B
root numbers
8. Properties of 1 and -1
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9. Adding/subtracting fractions
digit
product
divisibility by 3 rule
LCM is LCD
10. A number that is multiplied by another number to find a producr
commutative property
factor
expression
Original whole +/- amount of change
11. A letter that represents a value that may change
variables
terminating decimals
Number of decimal places is total number of decimals places in factors multiplied
greatest common factor
12. 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
Greater spread in values
Multiply by 100%
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
13. 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?
evaluate
denominator
sum
difference
14. When a number is larger than the other number. Example 65 > 56
expanded form using exponents
greater than
equal
exponents
15. An equation showing 2 ratios are equal
proportion
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
variables
16. A line for representing and graphing numbers. Each point on the line corresponds to a number.
factor
estimate
number line
not equal
17. The greatest whole number that is a factor of two or more nonzero whole numbers
not equal
greatest common factor
perfect square
Last two digits divisible by 4
18. Simplifying complex fractions: two methods
commutative property
Number of desired outcomes/number of total possible outcomes
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
associative property
19. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
Last two digits divisible by 4
greater than
product
whole number
20. Comparing positive fractions
constants
rational numbers
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
factor pair
21. To find the answer for; solve
proportion
evaluate
sum
difference
22. 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.
difference
Number of desired outcomes/number of total possible outcomes
compensation
prime number
23. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
composite number
sum
fraction
ratio
24. Dividing fractions
Invert second term - then multiply
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
LCM is LCD
Part
25. A fraction out of 100 - %
least common multiple
Add zeros to decimals until all decimals have same number of digits
number line
percent
26. New whole
equal
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Original whole +/- amount of change
product
27. Number divisible by 2
Last digit divisible by 2
fraction
Number of decimal places is total number of decimals places in factors multiplied
improper fraction
28. Reducing fractions
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
Last digit divisible by 2
Divide out largest common factor
29. Number divisible by 5
Last digit 0 or 5
fraction
1 dividing by number
equal
30. The answer to a multiplication problem
Middle value
Drop percent - move decimal point two place to left
product
even number
31. To make a percent
Multiply by 100%
expanded form using exponents
fraction
Value occurring most frequently
32. Standard deviation: greater if...
Original whole +/- amount of change
compensation
Greater spread in values
Divide by 100%
33. To change a percent to a decimal
(Amount of increase/original whole) x100%
even number
Drop percent - move decimal point two place to left
least
34. The smallest number in a group of numbers
Number of decimal places is total number of decimals places in factors multiplied
least
Last two digits divisible by 4
less than
35. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
less than
place value
even number
Add zeros to decimals until all decimals have same number of digits
36. 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
exponents
compensation
odd
37. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
Drop percent - move decimal point two place to left
odd number
product
associative property
38. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
Part
difference
associative property
39. A set of operators - numbers - variables and grouping symbols; no equal sign
least common multiple
equation
Total A/total B
expression
40. odd + even
distributive property
commutative property
odd
product
41. To place a fraction in lowest terms
ratio
simplify
Invert second term - then multiply
improper fraction
42. A number made up of a whole number and a fraction
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
numerator
common denominator
mixed number
43. Mode
Value occurring most frequently
inverse property
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
greatest common factor
44. Number divisible by 9
(Amount of decrease/original whole) x100%
Sum of digits divisible by 9
rational numbers
not equal
45. 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
Last two digits divisible by 4
Part
root numbers
identity property
46. Multiple-event probability
greatest
exponents
Last two digits divisible by 4
Probability for each event then multiply individual probabilities together
47. Average value
Sum of values/number of values
ratio
difference
expanded form using exponents
48. To drop a percent
Divide by 100%
rational numbers
denominator
odd
49. Number divisible by 3
Divide out largest common factor
commutative property
(Amount of decrease/original whole) x100%
Sum of digits divisible by 3
50. 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
factor pair
equal
less than