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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. Multiplying decimals
Greater spread in values
Number of decimal places is total number of decimals places in factors multiplied
estimate
digit
2. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
greatest
Middle value
factor
expanded form using exponents
3. 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
inverse property
Sum of digits divisible by 3
Last two digits divisible by 4
product
4. The answer to a multiplication problem
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
product
rational numbers
Number w/o signs
5. Median
variables
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
(Amount of increase/original whole) x100%
Middle value
6. To find a number that is close to an exact answer - E.g. 23+24 is around 50
variables
estimate
value
simplify
7. A line for representing and graphing numbers. Each point on the line corresponds to a number.
estimate
commutative property
number line
difference
8. The smallest number in a group of numbers
not equal
ratio
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
least
9. When a number is larger than the other number. Example 65 > 56
percent
factor pair
prime number
greater than
10. Two expressions that are set equal to each other; a number sentence with an equal sign
Greater spread in values
equation
Multiply by 100%
Divisible by 2 and 3
11. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
1 dividing by number
prime number
value
12. odd + even
Sum of digits divisible by 3
1 dividing by number
odd
least
13. odd + odd
even
Multiply by 100%
variables
evaluate
14. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
irrational numbers
fraction
Sum of values/number of values
product
15. Answer to a multiplication problem
product
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Divide out largest common factor
LCM is LCD
16. To change a percent to a decimal
Drop percent - move decimal point two place to left
Line up decimal points
whole number
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
17. Dividing fractions
divisibility by 3 rule
denominator
(Amount of decrease/original whole) x100%
Invert second term - then multiply
18. 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
Number of decimal places is total number of decimals places in factors multiplied
less than
Last two digits divisible by 4
irrational numbers
19. To drop a percent
inverse property
Divide by 100%
quotient
Reduce diagonally/vertically then multiply numerators and denominators
20. Reducing fractions
least common multiple
Divide out largest common factor
(Amount of decrease/original whole) x100%
expanded form using exponents
21. New whole
denominator
Original whole +/- amount of change
proportion
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
22. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
equivalent
prime number
1 dividing by number
percent
23. To find the answer for; solve
product
evaluate
simplify
inverse property
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
(Amount of decrease/original whole) x100%
Part
least common multiple
25. Natural Numbers - Whole Numbers - Integers - Rational Numbers
commutative property
compatible numbers
number line
rational numbers
26. How much a number is worth
order of operations
Last digit 0 or 5
Greater spread in values
value
27. Mode
range
Number w/o signs
Line up decimal points
Value occurring most frequently
28. Number divisible by 2
composite number
Last digit divisible by 2
Sum of digits divisible by 3
divisible
29. The answer to a subtraction problem
square number
compensation
difference
ratio
30. Absolute value of number
LCM is LCD
greatest common factor
mixed number
Number w/o signs
31. 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 by 100%
divisible
improper fraction
compensation
32. Properties of 1 and -1
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33. Answer to a division problem
Drop percent - move decimal point two place to left
improper fraction
quotient
composite number
34. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
Drop percent - move decimal point two place to left
repeating decimals
divisible
equivalent
35. A number with more than two factors
composite number
ratio
Original whole +/- amount of change
expression
36. Reciprocal of number
Last digit 0 or 5
Original whole +/- amount of change
rational numbers
1 dividing by number
37. A number made up of a whole number and a fraction
Divisible by 2 and 3
mixed number
proportion
not equal
38. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
value
perfect square
product
39. 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)=
equation
least
Sum of values/number of values
distributive property
40. Multiplying fractions
Reduce diagonally/vertically then multiply numerators and denominators
Last digit 0 or 5
percent
Add zeros to decimals until all decimals have same number of digits
41. Be identical or equivalent to
Invert second term - then multiply
perfect square
(Amount of increase/original whole) x100%
equal
42. A shortcut for writing repeated multiplication
quotient
Number of decimal places is total number of decimals places in factors multiplied
exponents
simplify
43. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
Last two digits divisible by 4
Line up decimal points
odd number
denominator
44. Comparing decimal fractions
greater than
Add zeros to decimals until all decimals have same number of digits
irrational numbers
identity property
45. To place a fraction in lowest terms
quotient
Last digit 0 or 5
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
simplify
46. Properties of 0
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47. Number divisible by 4
Probability for each event then multiply individual probabilities together
Greater spread in values
Last two digits divisible by 4
exponents
48. Adding/subtracting decimals
perfect square
Last digit divisible by 2
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
Line up decimal points
49. Two factors together that are multiplied to equal a larger number.
root numbers
Divisible by 2 and 3
range
factor pair
50. 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
1 dividing by number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
identity property
Number of decimal places is total number of decimals places in factors multiplied
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