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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 set of operators - numbers - variables and grouping symbols; no equal sign
Divide out largest common factor
square number
expression
whole number
2. The answer to an addition problem
odd
sum
range
Sum of digits divisible by 3
3. Percent x whole
odd number
Greater spread in values
Part
compatible numbers
4. A letter that represents a value that may change
decimal
variables
least common multiple
Multiply by 100%
5. A line for representing and graphing numbers. Each point on the line corresponds to a number.
Number of desired outcomes/number of total possible outcomes
odd number
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
number line
6. To place a fraction in lowest terms
simplify
distributive property
denominator
factor pair
7. Dividing fractions
Invert second term - then multiply
number line
factor pair
percent
8. The answer to a subtraction problem
prime factorization
Greater spread in values
difference
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
9. 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
identity property
constants
odd
simplify
10. A fraction whose numerator is greater than its denominator
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
Divisible by 2 and 3
improper fraction
11. Be identical or equivalent to
order of operations
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
least
equal
12. Reducing fractions
whole number
number line
Divisible by 2 and 3
Divide out largest common factor
13. How much a number is worth
value
prime factorization
range
Sum of values/number of values
14. Natural Numbers - Whole Numbers - Integers - Rational Numbers
odd number
rational numbers
composite number
odd
15. In 4x4=16 - what is 4?
Probability for each event then multiply individual probabilities together
root numbers
Last digit 0 or 5
associative property
16. To perform a calculation - E.g. 2+2=4
compute
digit
exponents
square number
17. Not identical or equivalent to
not equal
digit
Part
proportion
18. A number made up of a whole number and a fraction
denominator
inverse property
terminating decimals
mixed number
19. Comparing decimal fractions
exponents
greatest common factor
Add zeros to decimals until all decimals have same number of digits
inverse property
20. The smallest number in a group of numbers
range
least
Middle value
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
21. Multiplying fractions
not equal
mixed number
irrational numbers
Reduce diagonally/vertically then multiply numerators and denominators
22. A number that is multiplied by another number to find a producr
prime number
factor
prime factorization
even
23. 8x8=64 What is 64?
repeating decimals
LCM is LCD
simplify
perfect square
24. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
numerator
Number of desired outcomes/number of total possible outcomes
Reduce diagonally/vertically then multiply numerators and denominators
25. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
least common multiple
terminating decimals
Greater spread in values
Sum of digits divisible by 3
26. The greatest whole number that is a factor of two or more nonzero whole numbers
greatest common factor
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
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
fraction
27. A number with more than two factors
composite number
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Reduce diagonally/vertically then multiply numerators and denominators
order of operations
28. Number divisible by 2
Middle value
Last digit divisible by 2
Reduce diagonally/vertically then multiply numerators and denominators
Line up decimal points
29. Properties of 1 and -1
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30. Able to be divided evenly (without a remainder)
order of operations
fraction
divisible
number line
31. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
compatible numbers
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
Last digit divisible by 2
32. A fraction out of 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
percent
square number
equal
33. To drop a percent
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
difference
Divide by 100%
34. Standard deviation: greater if...
range
compute
divisibility by 3 rule
Greater spread in values
35. Adding/subtracting fractions
commutative property
Sum of digits divisible by 3
LCM is LCD
range
36. Number divisible by 9
expanded form using exponents
fraction
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Sum of digits divisible by 9
37. An equation showing 2 ratios are equal
proportion
range
Divide by 100%
greater than
38. New whole
expression
square number
Last digit 0 or 5
Original whole +/- amount of change
39. When a number is larger than the other number. Example 65 > 56
difference
Greater spread in values
greater than
irrational numbers
40. Relationship in which a number is smaller than another
less than
improper fraction
range
Total A/total B
41. The difference between the greatest and the least numbers in a set of data.
Total A/total B
denominator
irrational numbers
range
42. 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.
denominator
number line
Last digit 0 or 5
compensation
43. To find the answer for; solve
evaluate
greater than
decimal
(Amount of decrease/original whole) x100%
44. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
Divide by 100%
even number
estimate
equivalent
45. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
denominator
Divide out largest common factor
(Amount of increase/original whole) x100%
divisibility by 3 rule
46. Comparing positive fractions
common denominator
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
factor
Multiply by 100%
47. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
Last two digits divisible by 4
digit
factor pair
Last digit divisible by 2
48. A shortcut for writing repeated multiplication
1 dividing by number
identity property
exponents
whole number
49. 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?
not equal
Number of desired outcomes/number of total possible outcomes
numerator
factor pair
50. Dividing decimals
divisibility by 3 rule
distributive property
Probability for each event then multiply individual probabilities together
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend