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Number Sense Vocab

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. Not identical or equivalent to
Sum of digits divisible by 3
Part
least
not equal

2. 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
Part
irrational numbers
percent
fraction

3. Percent increase
proportion
quotient
Number of decimal places is total number of decimals places in factors multiplied
(Amount of increase/original whole) x100%

4. Standard deviation: greater if...
1 dividing by number
Greater spread in values
numerator
order of operations

5. How much a number is worth
value
composite number
range
decimal

6. To change a percent to a decimal
Drop percent - move decimal point two place to left
common denominator
order of operations
Probability for each event then multiply individual probabilities together

7. New whole
LCM is LCD
expanded form using exponents
Line up decimal points
Original whole +/- amount of change

8. Answer to a division problem
(Amount of decrease/original whole) x100%
Last digit 0 or 5
quotient
compatible numbers

9. Multiplying decimals
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
Number of decimal places is total number of decimals places in factors multiplied
simplify
place value

10. When a number is larger than the other number. Example 65 > 56
equivalent
greater than
evaluate
difference

11. A number that is multiplied by another number to find a producr
Multiply by 100%
commutative property
factor
Number w/o signs

12. Reducing fractions
inverse property
Value occurring most frequently
Divide out largest common factor
improper fraction

13. To find the answer for; solve
Probability for each event then multiply individual probabilities together
Value occurring most frequently
evaluate
Greater spread in values

14. odd + even
perfect square
expanded form using exponents
identity property
odd

15. A line for representing and graphing numbers. Each point on the line corresponds to a number.
constants
divisible
commutative property
number line

16. 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
odd
estimate
inverse property
Line up decimal points

17. In 4x4=16 - what is 4?
Last two digits divisible by 4
root numbers
Value occurring most frequently
Reduce diagonally/vertically then multiply numerators and denominators

18. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
Last digit 0 or 5
equal
whole number
mixed number

19. 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)
factor pair
associative property
mixed number
Line up decimal points

20. A fraction whose numerator is greater than its denominator
improper fraction
proportion
constants
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

21. Number divisible by 4
Multiply by 100%
Last two digits divisible by 4
proportion
compute

22. Median
Middle value
value
composite number
Line up decimal points

23. A fraction out of 100 - %
1 dividing by number
terminating decimals
greatest common factor
percent

24. Adding/subtracting decimals
factor pair
Line up decimal points
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
sum

25. The greatest whole number that is a factor of two or more nonzero whole numbers
common denominator
least
distributive property
greatest common factor

26. Dividing fractions
Invert second term - then multiply
greatest
improper fraction
factor pair

27. 8x8=64 What is 64?
square number
perfect square
least
1 dividing by number

28. Properties of 1 and -1

29. Simplifying complex fractions: two methods
Drop percent - move decimal point two place to left
decimal
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Invert second term - then multiply

30. An equation showing 2 ratios are equal
Divide by 100%
Drop percent - move decimal point two place to left
Multiply by 100%
proportion

31. The answer to a multiplication problem
perfect square
Last two digits divisible by 4
1 dividing by number
product

32. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
compatible numbers
ratio
order of operations
compensation

33. To perform a calculation - E.g. 2+2=4
equal
compute
whole number
percent

34. The largest number in a group of numbers
denominator
Divide by 100%
constants
greatest

35. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
exponents
Part
fraction
root numbers

36. Average value
repeating decimals
Sum of values/number of values
perfect square
quotient

37. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
(Amount of increase/original whole) x100%
expanded form using exponents
common denominator
simplify

38. Relationship in which a number is smaller than another
less than
Original whole +/- amount of change
divisibility by 3 rule
product

39. Number divisible by 3
factor
fraction
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Sum of digits divisible by 3

40. 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?
odd
denominator
Divide by 100%
Value occurring most frequently

41. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
distributive property
factor
repeating decimals
terminating decimals

42. Properties of numbers btw -1 and 1

43. 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.
Probability for each event then multiply individual probabilities together
Divisible by 2 and 3
percent
compensation

44. Percent x whole
Part
prime factorization
Sum of digits divisible by 9
Line up decimal points

45. Probability
Divide out largest common factor
Number of desired outcomes/number of total possible outcomes
estimate
Reduce diagonally/vertically then multiply numerators and denominators

46. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
Last digit divisible by 2
fraction
factor pair
even number

47. 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
inverse property
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
identity property
compute

48. Number divisible by 2
Middle value
equivalent
Last digit divisible by 2
Sum of digits divisible by 9

49. Mode
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
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
odd

50. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
order of operations
digit
Last two digits divisible by 4