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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 difference between the greatest and the least numbers in a set of data.
Probability for each event then multiply individual probabilities together
range
Last two digits divisible by 4
expression
2. 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
least
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
ratio
3. Number divisible by 5
factor pair
Last digit 0 or 5
estimate
digit
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.
Divide out largest common factor
compensation
evaluate
Sum of values/number of values
5. Simplifying complex fractions: two methods
difference
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Probability for each event then multiply individual probabilities together
prime number
6. In 4x4=16 - what is 4?
least
product
root numbers
percent
7. Reducing fractions
Divide out largest common factor
expanded form using exponents
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
product
8. An equation showing 2 ratios are equal
compatible numbers
exponents
proportion
greater than
9. 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
even number
distributive property
even
10. A fraction whose numerator is greater than its denominator
equal
associative property
improper fraction
compute
11. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
Invert second term - then multiply
digit
prime number
Part
12. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
1 dividing by number
Total A/total B
expanded form using exponents
Divide by 100%
13. odd + even
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
sum
Add zeros to decimals until all decimals have same number of digits
odd
14. odd + odd
value
constants
odd number
even
15. Multiplying decimals
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
Number of decimal places is total number of decimals places in factors multiplied
Last two digits divisible by 4
distributive property
16. Two expressions that are set equal to each other; a number sentence with an equal sign
odd
Line up decimal points
Part
equation
17. Dividing fractions
product
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
Divisible by 2 and 3
Invert second term - then multiply
18. Properties of numbers btw -1 and 1
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19. Relationship in which a number is smaller than another
Sum of digits divisible by 9
less than
associative property
Multiply by 100%
20. To find a number that is close to an exact answer - E.g. 23+24 is around 50
compute
decimal
evaluate
estimate
21. New whole
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Original whole +/- amount of change
Sum of digits divisible by 9
Number of desired outcomes/number of total possible outcomes
22. The answer to an addition problem
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Line up decimal points
sum
Part
23. The answer to a subtraction problem
terminating decimals
Probability for each event then multiply individual probabilities together
factor
difference
24. 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
identity property
Sum of digits divisible by 3
sum
25. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
compensation
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
odd number
terminating decimals
26. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
terminating decimals
associative property
factor
Add zeros to decimals until all decimals have same number of digits
27. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
compensation
place value
Sum of digits divisible by 3
root numbers
28. The greatest whole number that is a factor of two or more nonzero whole numbers
common denominator
Invert second term - then multiply
greatest common factor
divisibility by 3 rule
29. A set of operators - numbers - variables and grouping symbols; no equal sign
prime number
equation
1 dividing by number
expression
30. Properties of 1 and -1
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31. Multiple-event probability
least common multiple
Greater spread in values
Probability for each event then multiply individual probabilities together
place value
32. Median
Middle value
prime factorization
greatest common factor
mixed number
33. A fraction out of 100 - %
percent
rational numbers
Add zeros to decimals until all decimals have same number of digits
Drop percent - move decimal point two place to left
34. A number that is multiplied by another number to find a producr
compatible numbers
divisibility by 3 rule
factor
fraction
35. To perform a calculation - E.g. 2+2=4
expanded form using exponents
mixed number
Last digit 0 or 5
compute
36. To change a percent to a decimal
Greater spread in values
Drop percent - move decimal point two place to left
greater than
equivalent
37. A number with more than two factors
product
composite number
rational numbers
expanded form using exponents
38. When a number is larger than the other number. Example 65 > 56
less than
variables
equivalent
greater than
39. 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
odd
distributive property
Number of desired outcomes/number of total possible outcomes
40. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
Number w/o signs
Reduce diagonally/vertically then multiply numerators and denominators
equivalent
even
41. Number divisible by 3
Sum of digits divisible by 3
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
evaluate
equivalent
42. To find the answer for; solve
compensation
Number w/o signs
odd number
evaluate
43. The expression of a number as a product of prime factors; use a factor tree!
Line up decimal points
less than
prime factorization
denominator
44. 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?
Probability for each event then multiply individual probabilities together
LCM is LCD
variables
numerator
45. The smallest number in a group of numbers
least
simplify
prime number
range
46. Percent increase
product
(Amount of increase/original whole) x100%
least common multiple
sum
47. How much a number is worth
square number
denominator
compute
value
48. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
LCM is LCD
greatest
divisibility by 3 rule
least common multiple
49. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
Value occurring most frequently
repeating decimals
exponents
odd
50. Natural Numbers - Whole Numbers - Integers - Rational Numbers
least
rational numbers
Multiply by 100%
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend