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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. Multiple-event probability
constants
even number
Probability for each event then multiply individual probabilities together
product

2. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
equal
order of operations
improper fraction
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

3. The expression of a number as a product of prime factors; use a factor tree!
equal
prime factorization
Add zeros to decimals until all decimals have same number of digits
commutative property

4. When a number is larger than the other number. Example 65 > 56
inverse property
difference
greater than
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

5. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
compatible numbers
fraction
least
Number of decimal places is total number of decimals places in factors multiplied

6. New whole
not equal
prime number
digit
Original whole +/- amount of change

7. 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.
Number w/o signs
prime number
equivalent
compensation

8. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Sum of digits divisible by 9
product
estimate
compensation

9. Two factors together that are multiplied to equal a larger number.
equivalent
factor pair
least common multiple
greatest

10. Average value
Divisible by 2 and 3
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
not equal
Sum of values/number of values

11. Average A per B
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
distributive property
Total A/total B
Drop percent - move decimal point two place to left

12. Be identical or equivalent to
equal
equation
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
commutative property

13. 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
number line
terminating decimals
equation

14. 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?
whole number
Total A/total B
Drop percent - move decimal point two place to left
numerator

15. In 4x4=16 - what is 4?
Divisible by 2 and 3
(Amount of increase/original whole) x100%
root numbers
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

16. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
place value
even number
Drop percent - move decimal point two place to left
product

17. Adding/subtracting decimals
identity property
root numbers
estimate
Line up decimal points

18. To place a fraction in lowest terms
proportion
inverse property
simplify
Divisible by 2 and 3

19. A line for representing and graphing numbers. Each point on the line corresponds to a number.
number line
value
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
odd

20. How much a number is worth
value
number line
constants
least

21. A comparison of 2 numbers; one form is a fraction
ratio
divisibility by 3 rule
compensation
(Amount of increase/original whole) x100%

22. Properties of 0

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23. Probability
Number of desired outcomes/number of total possible outcomes
odd
order of operations
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

24. Answer to a multiplication problem
numerator
Reduce diagonally/vertically then multiply numerators and denominators
product
digit

25. 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)
Last digit 0 or 5
odd number
fraction
commutative property

26. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
improper fraction
Number of desired outcomes/number of total possible outcomes
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

27. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
equal
order of operations
repeating decimals

28. Number divisible by 4
Add zeros to decimals until all decimals have same number of digits
less than
Last two digits divisible by 4
evaluate

29. A fraction out of 100 - %
Divisible by 2 and 3
prime factorization
even
percent

30. Percent x whole
Part
proportion
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 w/o signs

31. The answer to a subtraction problem
Divisible by 2 and 3
estimate
difference
sum

32. Not identical or equivalent to
Drop percent - move decimal point two place to left
square number
distributive property
not equal

33. An equation showing 2 ratios are equal
order of operations
proportion
Last digit divisible by 2
range

34. A number that results from multiplying a factor by itself
square number
even
1 dividing by number
prime number

35. A value that does not change; any number
Line up decimal points
constants
improper fraction
range

36. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Multiply by 100%
Divide out largest common factor
compute
terminating decimals

37. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
expanded form using exponents
difference
Line up decimal points
Add zeros to decimals until all decimals have same number of digits

38. 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?
improper fraction
denominator
Part
even number

39. Two expressions that are set equal to each other; a number sentence with an equal sign
Invert second term - then multiply
equation
odd
fraction

40. Reducing fractions
repeating decimals
Divide out largest common factor
Sum of values/number of values
terminating decimals

41. A fraction whose numerator is greater than its denominator
compute
improper fraction
Part
Greater spread in values

42. Able to be divided evenly (without a remainder)
Number of desired outcomes/number of total possible outcomes
divisible
prime number
even

43. Dividing fractions
identity property
Invert second term - then multiply
terminating decimals
prime number

44. The answer to a multiplication problem
compute
distributive property
Number w/o signs
product

45. A shortcut for writing repeated multiplication
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
even number
exponents
estimate

46. 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
Divisible by 2 and 3
even
inverse property
mixed number

47. Multiplying decimals
Sum of values/number of values
Divide out largest common factor
rational numbers
Number of decimal places is total number of decimals places in factors multiplied

48. A number with more than two factors
odd
composite number
Probability for each event then multiply individual probabilities together
decimal

49. The greatest whole number that is a factor of two or more nonzero whole numbers
compatible numbers
greatest common factor
repeating decimals
square number

50. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
ratio
equivalent
greatest
Number of desired outcomes/number of total possible outcomes