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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. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
product
equation
Probability for each event then multiply individual probabilities together
terminating decimals
2. To find a number that is close to an exact answer - E.g. 23+24 is around 50
estimate
root numbers
greatest common factor
decimal
3. Percent x whole
Total A/total B
Part
equation
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
4. To change a percent to a decimal
Sum of digits divisible by 9
Drop percent - move decimal point two place to left
Original whole +/- amount of change
Sum of digits divisible by 3
5. Multiplying decimals
perfect square
product
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Number of decimal places is total number of decimals places in factors multiplied
6. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
expression
value
divisibility by 3 rule
factor
7. Reducing fractions
equivalent
prime number
Divide out largest common factor
equal
8. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
odd number
Last digit 0 or 5
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
9. A line for representing and graphing numbers. Each point on the line corresponds to a number.
Last digit divisible by 2
greatest
number line
distributive property
10. Properties of 0
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11. Percent decrease
Total A/total B
(Amount of decrease/original whole) x100%
rational numbers
prime number
12. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
place value
Multiply by 100%
Last two digits divisible by 4
whole number
13. A number made up of a whole number and a fraction
irrational numbers
mixed number
Line up decimal points
decimal
14. Properties of numbers btw -1 and 1
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15. To find the answer for; solve
evaluate
exponents
Divide out largest common factor
sum
16. An equation showing 2 ratios are equal
Reduce diagonally/vertically then multiply numerators and denominators
even
compute
proportion
17. When a number is larger than the other number. Example 65 > 56
greater than
least common multiple
fraction
Last two digits divisible by 4
18. The smallest number in a group of numbers
greatest common factor
constants
least
divisibility by 3 rule
19. 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?
product
Drop percent - move decimal point two place to left
numerator
irrational numbers
20. To place a fraction in lowest terms
simplify
composite number
least
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
21. Answer to a multiplication problem
Divisible by 2 and 3
exponents
common denominator
product
22. How much a number is worth
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
value
irrational numbers
23. Number divisible by 6
commutative property
1 dividing by number
range
Divisible by 2 and 3
24. A number with more than two factors
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
composite number
irrational numbers
common denominator
25. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
Multiply by 100%
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
odd number
Reduce diagonally/vertically then multiply numerators and denominators
26. The answer to a subtraction problem
difference
equation
Divide by 100%
factor
27. A shortcut for writing repeated multiplication
not equal
quotient
commutative property
exponents
28. To perform a calculation - E.g. 2+2=4
common denominator
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
compute
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
29. Number divisible by 3
Divisible by 2 and 3
decimal
Last two digits divisible by 4
Sum of digits divisible by 3
30. A fraction whose numerator is greater than its denominator
improper fraction
prime factorization
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
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
31. Not identical or equivalent to
not equal
place value
compatible numbers
digit
32. 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)
irrational numbers
greatest
associative property
distributive property
33. Number divisible by 9
ratio
Sum of digits divisible by 9
simplify
Number of desired outcomes/number of total possible outcomes
34. A property indicating a special way in which multiplication is applied to addition of two or more numbers in which each term inside a set of parentheses can be multiplied by a factor outside the parentheses - such as a(b + c) = ab + ac - or 7x (4+1)=
Sum of digits divisible by 9
Multiply by 100%
common denominator
distributive property
35. Mode
decimal
evaluate
distributive property
Value occurring most frequently
36. A number that results from multiplying a factor by itself
square number
even
value
Divisible by 2 and 3
37. 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
simplify
square number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
38. A value that does not change; any number
constants
prime number
exponents
Number w/o signs
39. 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
greatest
improper fraction
irrational numbers
place value
40. The answer to a multiplication problem
product
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Greater spread in values
equal
41. Median
Middle value
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Sum of digits divisible by 9
percent
42. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
denominator
evaluate
compatible numbers
common denominator
43. To make a percent
Multiply by 100%
prime factorization
Add zeros to decimals until all decimals have same number of digits
constants
44. A number with one or more digits to the right of the decimal point - E.g. .33
prime factorization
decimal
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Number of desired outcomes/number of total possible outcomes
45. To drop a percent
equal
number line
Divide by 100%
range
46. Dividing decimals
compensation
quotient
LCM is LCD
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
47. odd + odd
LCM is LCD
simplify
difference
even
48. Absolute value of number
odd
Number w/o signs
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
rational numbers
49. In 4x4=16 - what is 4?
simplify
expression
root numbers
even
50. New whole
Original whole +/- amount of change
even number
variables
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately