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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. New whole
exponents
Reduce diagonally/vertically then multiply numerators and denominators
Original whole +/- amount of change
estimate

2. Be identical or equivalent to
1 dividing by number
greatest
equation
equal

3. 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.
compensation
compute
place value
even

4. To find the answer for; solve
prime number
evaluate
product
expanded form using exponents

5. 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?
mixed number
expanded form using exponents
not equal
denominator

6. To change a percent to a decimal
Drop percent - move decimal point two place to left
quotient
equal
1 dividing by number

7. Mode
Value occurring most frequently
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
proportion
Reduce diagonally/vertically then multiply numerators and denominators

8. 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?
numerator
composite number
greatest common factor
value

9. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
prime number
equivalent
whole number
terminating decimals

10. A comparison of 2 numbers; one form is a fraction
fraction
divisible
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
ratio

11. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
Multiply by 100%
equal
least common multiple
equivalent

12. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
expression
commutative property
digit
repeating decimals

13. Answer to a multiplication problem
Sum of digits divisible by 3
rational numbers
Last digit divisible by 2
product

14. In 4x4=16 - what is 4?
improper fraction
Last digit 0 or 5
whole number
root numbers

15. The expression of a number as a product of prime factors; use a factor tree!
least
range
prime factorization
Multiply by 100%

16. Percent increase
odd
difference
(Amount of increase/original whole) x100%
prime number

17. Reciprocal of number
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Divide out largest common factor
variables
1 dividing by number

18. Number divisible by 6
greater than
Invert second term - then multiply
compatible numbers
Divisible by 2 and 3

19. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
less than
equation
place value
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

20. Properties of 1 and -1

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21. 8x8=64 What is 64?
Probability for each event then multiply individual probabilities together
compute
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
perfect square

22. Simplifying complex fractions: two methods
Last digit divisible by 2
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
least
1 dividing by number

23. Dividing fractions
estimate
Sum of values/number of values
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
Invert second term - then multiply

24. A number that is multiplied by another number to find a producr
number line
Original whole +/- amount of change
commutative property
factor

25. Adding/subtracting decimals
Sum of digits divisible by 3
least
even number
Line up decimal points

26. Properties of numbers btw -1 and 1

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27. Comparing decimal fractions
greatest common factor
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Add zeros to decimals until all decimals have same number of digits
Sum of digits divisible by 9

28. Number divisible by 2
not equal
Greater spread in values
Last digit divisible by 2
estimate

29. A shortcut for writing repeated multiplication
exponents
square number
common denominator
compute

30. A number that results from multiplying a factor by itself
square number
repeating decimals
Invert second term - then multiply
greatest

31. The answer to a multiplication problem
less than
percent
compensation
product

32. odd + even
odd
root numbers
place value
odd number

33. Probability
Number of desired outcomes/number of total possible outcomes
place value
greatest common factor
expression

34. 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
irrational numbers
Value occurring most frequently
associative property
least

35. Number divisible by 4
associative property
Last two digits divisible by 4
product
mixed number

36. To perform a calculation - E.g. 2+2=4
Divide out largest common factor
Multiply by 100%
compute
Middle value

37. Answer to a division problem
quotient
Original whole +/- amount of change
not equal
(Amount of increase/original whole) x100%

38. 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)
greater than
commutative property
digit
least common multiple

39. How much a number is worth
value
distributive property
prime number
expanded form using exponents

40. Comparing positive fractions
estimate
root numbers
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Divisible by 2 and 3

41. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
Sum of digits divisible by 9
Reduce diagonally/vertically then multiply numerators and denominators
number line
repeating decimals

42. Median
greatest
quotient
Middle value
Last digit 0 or 5

43. Number divisible by 3
Sum of digits divisible by 3
rational numbers
less than
least

44. Number divisible by 5
mixed number
Number of desired outcomes/number of total possible outcomes
odd
Last digit 0 or 5

45. A value that does not change; any number
constants
perfect square
Middle value
greatest common factor

46. odd + odd
even
Divide by 100%
Divide out largest common factor
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

47. Multiple-event probability
Number of decimal places is total number of decimals places in factors multiplied
greatest
Probability for each event then multiply individual probabilities together
odd number

48. Multiplying decimals
numerator
Value occurring most frequently
Number of decimal places is total number of decimals places in factors multiplied
Reduce diagonally/vertically then multiply numerators and denominators

49. Relationship in which a number is smaller than another
1 dividing by number
Invert second term - then multiply
less than
commutative property

50. Percent decrease
less than
(Amount of decrease/original whole) x100%
fraction
exponents