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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. Average A per B
Number of desired outcomes/number of total possible outcomes
Total A/total B
Value occurring most frequently
Middle value

2. 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?
compatible numbers
exponents
denominator
estimate

3. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
numerator
divisibility by 3 rule
distributive property
range

4. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
prime number
product
exponents
Divide by 100%

5. A number with more than two factors
Invert second term - then multiply
composite number
square number
associative property

6. The expression of a number as a product of prime factors; use a factor tree!
1 dividing by number
irrational numbers
prime factorization
common denominator

7. Reciprocal of number
even number
rational numbers
1 dividing by number
odd number

8. The answer to a multiplication problem
product
expression
estimate
simplify

9. Natural Numbers - Whole Numbers - Integers - Rational Numbers
odd
Add zeros to decimals until all decimals have same number of digits
difference
rational numbers

10. Properties of numbers btw -1 and 1

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11. Comparing positive fractions
product
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
difference
Reduce diagonally/vertically then multiply numerators and denominators

12. To find the answer for; solve
(Amount of increase/original whole) x100%
factor pair
sum
evaluate

13. 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
Value occurring most frequently
percent
irrational numbers
place value

14. A number that results from multiplying a factor by itself
square number
Number of desired outcomes/number of total possible outcomes
mixed number
quotient

15. 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
exponents
less than
root numbers

16. New whole
irrational numbers
Original whole +/- amount of change
greatest common factor
numerator

17. A line for representing and graphing numbers. Each point on the line corresponds to a number.
place value
number line
equivalent
mixed number

18. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
number line
least
associative property

19. A number made up of a whole number and a fraction
proportion
mixed number
simplify
associative property

20. Percent x whole
least common multiple
Part
product
equal

21. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
distributive property
equivalent
divisible
Add zeros to decimals until all decimals have same number of digits

22. Number divisible by 6
fraction
perfect square
Divide by 100%
Divisible by 2 and 3

23. odd + odd
Probability for each event then multiply individual probabilities together
even
irrational numbers
Sum of digits divisible by 9

24. 8x8=64 What is 64?
evaluate
perfect square
Probability for each event then multiply individual probabilities together
divisible

25. Able to be divided evenly (without a remainder)
constants
evaluate
divisible
percent

26. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
Number of decimal places is total number of decimals places in factors multiplied
whole number
compute
Original whole +/- amount of change

27. 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
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
even
LCM is LCD

28. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
odd
greatest common factor
even number
factor

29. Properties of 0

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30. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
Original whole +/- amount of change
even number
proportion
least common multiple

31. Multiplying fractions
product
Reduce diagonally/vertically then multiply numerators and denominators
terminating decimals
Invert second term - then multiply

32. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
Line up decimal points
rational numbers
Probability for each event then multiply individual probabilities together

33. Number divisible by 5
not equal
Last digit 0 or 5
perfect square
sum

34. Not identical or equivalent to
denominator
not equal
equation
Original whole +/- amount of change

35. To drop a percent
perfect square
Divide by 100%
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
square number

36. To change a percent to a decimal
1 dividing by number
prime factorization
Drop percent - move decimal point two place to left
constants

37. Properties of 1 and -1

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38. Answer to a division problem
Divisible by 2 and 3
quotient
Number of decimal places is total number of decimals places in factors multiplied
identity property

39. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
square number
compatible numbers
commutative property
rational numbers

40. Adding/subtracting decimals
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
greatest
Line up decimal points
even number

41. 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?
order of operations
repeating decimals
numerator
Number w/o signs

42. In 4x4=16 - what is 4?
whole number
decimal
root numbers
greatest common factor

43. To perform a calculation - E.g. 2+2=4
compute
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
estimate
Number w/o signs

44. Median
greatest
range
factor
Middle value

45. How much a number is worth
square number
divisibility by 3 rule
Divisible by 2 and 3
value

46. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
digit
expanded form using exponents
greater than
least common multiple

47. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
inverse property
proportion
odd
odd number

48. The smallest number in a group of numbers
inverse property
Sum of digits divisible by 9
equivalent
least

49. Standard deviation: greater if...
compatible numbers
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Greater spread in values
1 dividing by number

50. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
expression
Divide out largest common factor
fraction
odd