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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. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
identity property
root numbers
numerator
2. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
value
perfect square
least common multiple
Add zeros to decimals until all decimals have same number of digits
3. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
Divide out largest common factor
exponents
order of operations
even number
4. The smallest number in a group of numbers
least
Middle value
greatest
factor
5. To perform a calculation - E.g. 2+2=4
Sum of values/number of values
compute
Line up decimal points
composite number
6. 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
estimate
irrational numbers
LCM is LCD
repeating decimals
7. Percent increase
odd
product
(Amount of increase/original whole) x100%
expanded form using exponents
8. 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?
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
numerator
factor
1 dividing by number
9. The answer to an addition problem
sum
factor pair
Last two digits divisible by 4
common denominator
10. Multiplying fractions
commutative property
product
1 dividing by number
Reduce diagonally/vertically then multiply numerators and denominators
11. A line for representing and graphing numbers. Each point on the line corresponds to a number.
common denominator
(Amount of increase/original whole) x100%
number line
inverse property
12. Reciprocal of number
1 dividing by number
exponents
terminating decimals
Middle value
13. To find a number that is close to an exact answer - E.g. 23+24 is around 50
LCM is LCD
estimate
Probability for each event then multiply individual probabilities together
root numbers
14. Probability
greatest
odd number
Number of desired outcomes/number of total possible outcomes
digit
15. Simplifying complex fractions: two methods
Sum of digits divisible by 3
terminating decimals
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Total A/total B
16. Median
factor pair
estimate
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
Middle value
17. Standard deviation: greater if...
commutative property
number line
percent
Greater spread in values
18. Average A per B
Total A/total B
perfect square
Probability for each event then multiply individual probabilities together
least
19. To drop a percent
improper fraction
Divide by 100%
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
inverse property
20. Number divisible by 2
Last digit divisible by 2
repeating decimals
1 dividing by number
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
21. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
Original whole +/- amount of change
distributive property
prime number
Multiply by 100%
22. Adding/subtracting fractions
Total A/total B
least
LCM is LCD
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
23. The answer to a multiplication problem
perfect square
Divisible by 2 and 3
sum
product
24. Two expressions that are set equal to each other; a number sentence with an equal sign
less than
Sum of digits divisible by 3
equation
(Amount of decrease/original whole) x100%
25. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
value
distributive property
greatest
odd number
26. Properties of 0
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27. A set of operators - numbers - variables and grouping symbols; no equal sign
(Amount of increase/original whole) x100%
equivalent
expression
less than
28. Two factors together that are multiplied to equal a larger number.
factor pair
least common multiple
Total A/total B
range
29. Reducing fractions
divisible
equivalent
Divide out largest common factor
Middle value
30. Number divisible by 5
perfect square
denominator
even
Last digit 0 or 5
31. 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
Divide out largest common factor
identity property
Last digit 0 or 5
prime number
32. Be identical or equivalent to
root numbers
equal
distributive property
associative property
33. Natural Numbers - Whole Numbers - Integers - Rational Numbers
equal
rational numbers
expression
less than
34. Mode
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Value occurring most frequently
terminating decimals
prime number
35. When a number is larger than the other number. Example 65 > 56
quotient
greater than
divisibility by 3 rule
even number
36. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
greatest
percent
Divisible by 2 and 3
37. 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)
associative property
terminating decimals
1 dividing by number
mixed number
38. Answer to a division problem
prime factorization
variables
quotient
Multiply by 100%
39. A number with one or more digits to the right of the decimal point - E.g. .33
Total A/total B
decimal
Value occurring most frequently
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
40. The expression of a number as a product of prime factors; use a factor tree!
rational numbers
prime factorization
1 dividing by number
least
41. An equation showing 2 ratios are equal
decimal
prime factorization
repeating decimals
proportion
42. To make a percent
estimate
Multiply by 100%
equation
order of operations
43. A comparison of 2 numbers; one form is a fraction
ratio
least
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
1 dividing by number
44. odd + even
odd
perfect square
Reduce diagonally/vertically then multiply numerators and denominators
numerator
45. 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?
least
root numbers
denominator
value
46. A number that results from multiplying a factor by itself
fraction
square number
Number of decimal places is total number of decimals places in factors multiplied
equivalent
47. A value that does not change; any number
evaluate
constants
Probability for each event then multiply individual probabilities together
Add zeros to decimals until all decimals have same number of digits
48. Not identical or equivalent to
Last digit 0 or 5
not equal
difference
place value
49. A number made up of a whole number and a fraction
Probability for each event then multiply individual probabilities together
commutative property
mixed number
Part
50. In 4x4=16 - what is 4?
root numbers
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
fraction
Drop percent - move decimal point two place to left