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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. 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.
numerator
Original whole +/- amount of change
sum
compensation
2. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
place value
expanded form using exponents
Drop percent - move decimal point two place to left
LCM is LCD
3. Relationship in which a number is smaller than another
less than
improper fraction
Invert second term - then multiply
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
4. New whole
Original whole +/- amount of change
square number
1 dividing by number
repeating decimals
5. Number divisible by 3
Sum of digits divisible by 3
numerator
Line up decimal points
place value
6. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
compatible numbers
repeating decimals
ratio
Last digit 0 or 5
7. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
Last digit divisible by 2
divisible
product
whole number
8. The expression of a number as a product of prime factors; use a factor tree!
Invert second term - then multiply
Sum of digits divisible by 9
least
prime factorization
9. 1/5 + 1/4=4/20 +5/20 and 20 is the...
range
common denominator
improper fraction
Last digit divisible by 2
10. A number made up of a whole number and a fraction
mixed number
factor
less than
equal
11. A set of operators - numbers - variables and grouping symbols; no equal sign
Total A/total B
Sum of values/number of values
expression
Part
12. To perform a calculation - E.g. 2+2=4
expanded form using exponents
Number of desired outcomes/number of total possible outcomes
compute
odd
13. Two expressions that are set equal to each other; a number sentence with an equal sign
Number of desired outcomes/number of total possible outcomes
factor
greatest common factor
equation
14. Multiplying decimals
constants
Last digit 0 or 5
identity property
Number of decimal places is total number of decimals places in factors multiplied
15. Reciprocal of number
fraction
1 dividing by number
Sum of values/number of values
order of operations
16. 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
Number of desired outcomes/number of total possible outcomes
terminating decimals
compatible numbers
17. The answer to a subtraction problem
equation
difference
greatest
Original whole +/- amount of change
18. Two factors together that are multiplied to equal a larger number.
1 dividing by number
constants
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
factor pair
19. Properties of 0
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20. 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
even number
common denominator
numerator
21. To make a percent
greatest common factor
Multiply by 100%
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
denominator
22. Number divisible by 5
Divide by 100%
prime number
Last digit 0 or 5
Invert second term - then multiply
23. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
greatest
greatest common factor
24. 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
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
root numbers
Divide out largest common factor
inverse property
25. A letter that represents a value that may change
Last two digits divisible by 4
root numbers
variables
value
26. 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
Sum of values/number of values
order of operations
even
27. 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?
digit
greater than
Total A/total B
numerator
28. A fraction whose numerator is greater than its denominator
improper fraction
estimate
odd
Number w/o signs
29. Reducing fractions
Greater spread in values
greater than
Divide out largest common factor
associative property
30. Simplifying complex fractions: two methods
prime factorization
Number of decimal places is total number of decimals places in factors multiplied
even
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
31. Comparing decimal fractions
Add zeros to decimals until all decimals have same number of digits
variables
compatible numbers
Divisible by 2 and 3
32. The answer to a multiplication problem
perfect square
Reduce diagonally/vertically then multiply numerators and denominators
product
greatest
33. To drop a percent
simplify
less than
prime factorization
Divide by 100%
34. The largest number in a group of numbers
improper fraction
equivalent
odd
greatest
35. A number with more than two factors
inverse property
Last digit 0 or 5
associative property
composite number
36. Be identical or equivalent to
rational numbers
Number of desired outcomes/number of total possible outcomes
greatest
equal
37. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
square number
Drop percent - move decimal point two place to left
factor pair
divisibility by 3 rule
38. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
factor
Line up decimal points
terminating decimals
square number
39. A value that does not change; any number
irrational numbers
constants
simplify
divisible
40. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
distributive property
digit
prime factorization
Middle value
41. How much a number is worth
Sum of values/number of values
value
mixed number
terminating decimals
42. An equation showing 2 ratios are equal
repeating decimals
proportion
variables
percent
43. Average value
composite number
percent
Sum of values/number of values
greatest common factor
44. Absolute value of number
Divide by 100%
Number w/o signs
LCM is LCD
product
45. 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
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
estimate
identity property
46. Not identical or equivalent to
fraction
composite number
not equal
less than
47. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
not equal
fraction
product
expression
48. Percent x whole
factor pair
1 dividing by number
Invert second term - then multiply
Part
49. A comparison of 2 numbers; one form is a fraction
ratio
Drop percent - move decimal point two place to left
value
Divide out largest common factor
50. Number divisible by 6
sum
mixed number
odd number
Divisible by 2 and 3