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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. The expression of a number as a product of prime factors; use a factor tree!
percent
exponents
prime factorization
numerator
2. Adding/subtracting fractions
product
compatible numbers
LCM is LCD
irrational numbers
3. Percent increase
ratio
(Amount of increase/original whole) x100%
Invert second term - then multiply
greatest
4. 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.
compensation
place value
compatible numbers
Part
5. The greatest whole number that is a factor of two or more nonzero whole numbers
Divisible by 2 and 3
greatest common factor
repeating decimals
number line
6. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
terminating decimals
exponents
improper fraction
denominator
7. Probability
whole number
number line
estimate
Number of desired outcomes/number of total possible outcomes
8. A number that is multiplied by another number to find a producr
Reduce diagonally/vertically then multiply numerators and denominators
Original whole +/- amount of change
ratio
factor
9. Multiplying decimals
greater than
Number of decimal places is total number of decimals places in factors multiplied
compatible numbers
Last two digits divisible by 4
10. Number divisible by 6
inverse property
square number
difference
Divisible by 2 and 3
11. Number divisible by 9
inverse property
Middle value
Divide by 100%
Sum of digits divisible by 9
12. The answer to a multiplication problem
Divide by 100%
identity property
product
Number w/o signs
13. How much a number is worth
constants
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
product
value
14. Number divisible by 5
factor pair
Greater spread in values
Last digit 0 or 5
terminating decimals
15. A set of operators - numbers - variables and grouping symbols; no equal sign
equivalent
Sum of digits divisible by 9
expression
least
16. The largest number in a group of numbers
greatest
number line
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
simplify
17. Able to be divided evenly (without a remainder)
exponents
divisible
ratio
Sum of digits divisible by 9
18. To make a percent
prime number
Multiply by 100%
expanded form using exponents
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
19. Properties of numbers btw -1 and 1
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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
even number
equation
compensation
divisible
21. An equation showing 2 ratios are equal
evaluate
Invert second term - then multiply
proportion
digit
22. In multiplication or addition - the order of two numbers may be switched around and the answer is the same. Ex: a+b = b+a. or (1x2) x 3=1x (2x3)
order of operations
commutative property
terminating decimals
Number of desired outcomes/number of total possible outcomes
23. 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
equivalent
inverse property
Add zeros to decimals until all decimals have same number of digits
improper fraction
24. 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)=
distributive property
exponents
Reduce diagonally/vertically then multiply numerators and denominators
digit
25. Average value
odd
place value
Part
Sum of values/number of values
26. New whole
denominator
Sum of digits divisible by 3
commutative property
Original whole +/- amount of change
27. Number divisible by 2
Last digit divisible by 2
exponents
decimal
equal
28. odd + odd
even
Invert second term - then multiply
equivalent
Add zeros to decimals until all decimals have same number of digits
29. Natural Numbers - Whole Numbers - Integers - Rational Numbers
prime number
rational numbers
greatest
range
30. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Divide out largest common factor
odd number
range
31. Multiple-event probability
ratio
Last digit divisible by 2
number line
Probability for each event then multiply individual probabilities together
32. Multiplying fractions
prime number
Reduce diagonally/vertically then multiply numerators and denominators
Divide out largest common factor
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
33. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
least common multiple
decimal
quotient
Part
34. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
repeating decimals
Divisible by 2 and 3
(Amount of decrease/original whole) x100%
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
35. 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
sum
identity property
value
improper fraction
36. A number with one or more digits to the right of the decimal point - E.g. .33
inverse property
place value
decimal
identity property
37. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
value
composite number
Middle value
38. Dividing decimals
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Multiply by 100%
Value occurring most frequently
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
39. To find the answer for; solve
proportion
improper fraction
percent
evaluate
40. Median
common denominator
compatible numbers
Middle value
equation
41. The smallest number in a group of numbers
least
sum
simplify
variables
42. Be identical or equivalent to
equal
1 dividing by number
constants
Greater spread in values
43. A number made up of a whole number and a fraction
inverse property
equivalent
prime factorization
mixed number
44. Number divisible by 3
Sum of digits divisible by 3
Divide by 100%
factor pair
digit
45. Answer to a multiplication problem
Number of desired outcomes/number of total possible outcomes
product
identity property
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
46. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
not equal
whole number
Greater spread in values
product
47. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
number line
expanded form using exponents
distributive property
variables
48. Number divisible by 4
simplify
fraction
common denominator
Last two digits divisible by 4
49. Two expressions that are set equal to each other; a number sentence with an equal sign
Original whole +/- amount of change
associative property
Total A/total B
equation
50. Percent x whole
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
Part
(Amount of increase/original whole) x100%
product