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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. Number divisible by 5
rational numbers
Last digit 0 or 5
digit
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

2. 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?
terminating decimals
order of operations
least
numerator

3. Percent x whole
constants
estimate
Part
perfect square

4. Multiple-event probability
divisible
place value
Probability for each event then multiply individual probabilities together
decimal

5. A number that is multiplied by another number to find a producr
estimate
Divisible by 2 and 3
Probability for each event then multiply individual probabilities together
factor

6. 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
irrational numbers
inverse property
root numbers
Sum of digits divisible by 9

7. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
odd number
whole number
prime factorization
expression

8. Be identical or equivalent to
Sum of values/number of values
Probability for each event then multiply individual probabilities together
equal
number line

9. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
equal
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
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
even number

10. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
Probability for each event then multiply individual probabilities together
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
variables
digit

11. Percent increase
(Amount of increase/original whole) x100%
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
mixed number
perfect square

12. Able to be divided evenly (without a remainder)
perfect square
Value occurring most frequently
divisible
mixed number

13. A line for representing and graphing numbers. Each point on the line corresponds to a number.
odd
equal
number line
order of operations

14. To find a number that is close to an exact answer - E.g. 23+24 is around 50
product
prime factorization
estimate
difference

15. An equation showing 2 ratios are equal
commutative property
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
proportion
least common multiple

16. Multiplying fractions
Sum of digits divisible by 3
digit
expression
Reduce diagonally/vertically then multiply numerators and denominators

17. Number divisible by 3
divisible
odd number
Sum of digits divisible by 3
Invert second term - then multiply

18. The expression of a number as a product of prime factors; use a factor tree!
prime factorization
Divide by 100%
fraction
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. The smallest number in a group of numbers
least
Last digit divisible by 2
Divide out largest common factor
order of operations

20. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Sum of values/number of values
proportion
greatest
place value

21. Absolute value of number
less than
Number w/o signs
equal
improper fraction

22. A fraction out of 100 - %
prime factorization
percent
inverse property
Original whole +/- amount of change

23. How much a number is worth
simplify
value
Line up decimal points
not equal

24. The difference between the greatest and the least numbers in a set of data.
Add zeros to decimals until all decimals have same number of digits
greatest common factor
Number of decimal places is total number of decimals places in factors multiplied
range

25. To perform a calculation - E.g. 2+2=4
compute
(Amount of decrease/original whole) x100%
number line
Total A/total B

26. Reciprocal of number
1 dividing by number
simplify
value
Add zeros to decimals until all decimals have same number of digits

27. Number divisible by 9
prime number
Number of decimal places is total number of decimals places in factors multiplied
Drop percent - move decimal point two place to left
Sum of digits divisible by 9

28. New whole
expression
Original whole +/- amount of change
Total A/total B
Divisible by 2 and 3

29. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
common denominator
mixed number
Reduce diagonally/vertically then multiply numerators and denominators

30. Comparing positive fractions
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
1 dividing by number
Middle value
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

31. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
Drop percent - move decimal point two place to left
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
rational numbers
whole number

32. In 4x4=16 - what is 4?
digit
root numbers
terminating decimals
percent

33. A number that results from multiplying a factor by itself
Greater spread in values
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
identity property
square number

34. Answer to a multiplication problem
Greater spread in values
Number of decimal places is total number of decimals places in factors multiplied
product
estimate

35. When a number is larger than the other number. Example 65 > 56
greater than
Number w/o signs
identity property
fraction

36. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
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
Last two digits divisible by 4
repeating decimals
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

37. To make a percent
Multiply by 100%
numerator
(Amount of increase/original whole) x100%
Last digit 0 or 5

38. The answer to a multiplication problem
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
expression
equation
product

39. Probability
LCM is LCD
factor
Part
Number of desired outcomes/number of total possible outcomes

40. Properties of numbers btw -1 and 1

41. A letter that represents a value that may change
variables
Line up decimal points
digit
Greater spread in values

42. 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
proportion
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
terminating decimals

43. 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)
ratio
Reduce diagonally/vertically then multiply numerators and denominators
commutative property
prime factorization

44. Dividing decimals
Divide by 100%
composite number
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Sum of digits divisible by 9

45. The largest number in a group of numbers
LCM is LCD
Total A/total B
greatest
improper fraction

46. A shortcut for writing repeated multiplication
odd
composite number
least
exponents

47. Relationship in which a number is smaller than another
quotient
less than
composite number
Divide by 100%

48. 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
Add zeros to decimals until all decimals have same number of digits
Number w/o signs
estimate

49. Number divisible by 6
Divisible by 2 and 3
proportion
product
Multiply by 100%

50. 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.
value
Multiply by 100%
Greater spread in values
compensation