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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. Answer to a multiplication problem
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
product
divisible
expression

2. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
rational numbers
odd number
Original whole +/- amount of change
prime number

3. Adding/subtracting fractions
greater than
LCM is LCD
Total A/total B
Divide out largest common factor

4. To perform a calculation - E.g. 2+2=4
quotient
constants
Sum of values/number of values
compute

5. A letter that represents a value that may change
variables
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
least
commutative property

6. The smallest number in a group of numbers
product
LCM is LCD
least
Part

7. The answer to a multiplication problem
product
composite number
Invert second term - then multiply
root numbers

8. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
compute
repeating decimals
compatible numbers
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

9. Multiplying decimals
perfect square
whole number
Number of decimal places is total number of decimals places in factors multiplied
(Amount of decrease/original whole) x100%

10. A number made up of a whole number and a fraction
terminating decimals
Sum of digits divisible by 9
mixed number
variables

11. A fraction whose numerator is greater than its denominator
prime number
Invert second term - then multiply
odd
improper fraction

12. The largest number in a group of numbers
greatest
ratio
variables
product

13. Number divisible by 3
least common multiple
simplify
Sum of digits divisible by 3
Divide out largest common factor

14. 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
even number
inverse property
Last digit 0 or 5
Original whole +/- amount of change

15. Simplifying complex fractions: two methods
terminating decimals
range
root numbers
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

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
least common multiple
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

17. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
repeating decimals
Last two digits divisible by 4
Number of decimal places is total number of decimals places in factors multiplied
divisibility by 3 rule

18. Dividing fractions
identity property
Invert second term - then multiply
Multiply by 100%
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

19. A fraction out of 100 - %
percent
Original whole +/- amount of change
numerator
prime factorization

20. 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)
commutative property
mixed number
expanded form using exponents
Number of desired outcomes/number of total possible outcomes

21. Be identical or equivalent to
common denominator
Part
Last two digits divisible by 4
equal

22. To change a percent to a decimal
Part
prime number
Last digit divisible by 2
Drop percent - move decimal point two place to left

23. The answer to a subtraction problem
number line
product
difference
Part

24. To drop a percent
compensation
evaluate
Divide by 100%
common denominator

25. To place a fraction in lowest terms
simplify
less than
Number of desired outcomes/number of total possible outcomes
Part

26. Probability
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
variables
Number of desired outcomes/number of total possible outcomes
Last two digits divisible by 4

27. To find the answer for; solve
evaluate
Number w/o signs
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Part

28. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
compensation
least
Middle value

29. In 4x4=16 - what is 4?
commutative property
square number
root numbers
Drop percent - move decimal point two place to left

30. Number divisible by 5
product
Last digit 0 or 5
identity property
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

31. Properties of 1 and -1

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32. Multiplying fractions
commutative property
square number
constants
Reduce diagonally/vertically then multiply numerators and denominators

33. Not identical or equivalent to
Part
odd
not equal
numerator

34. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Line up decimal points
composite number
inverse property
place value

35. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
compute
difference
Divide out largest common factor

36. To make a percent
percent
constants
expression
Multiply by 100%

37. Reducing fractions
Drop percent - move decimal point two place to left
difference
Divide out largest common factor
Total A/total B

38. Absolute value of number
Number w/o signs
equation
root numbers
Number of decimal places is total number of decimals places in factors multiplied

39. 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?
denominator
Sum of digits divisible by 3
Drop percent - move decimal point two place to left
commutative property

40. 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
root numbers
Invert second term - then multiply
percent

41. Number divisible by 2
odd number
quotient
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
Last digit divisible by 2

42. A line for representing and graphing numbers. Each point on the line corresponds to a number.
numerator
compute
proportion
number line

43. The expression of a number as a product of prime factors; use a factor tree!
prime factorization
Last two digits divisible by 4
sum
(Amount of decrease/original whole) x100%

44. New whole
exponents
decimal
Original whole +/- amount of change
Divide out largest common factor

45. Percent decrease
(Amount of decrease/original whole) x100%
number line
root numbers
sum

46. 8x8=64 What is 64?
ratio
place value
root numbers
perfect square

47. How much a number is worth
constants
value
Sum of digits divisible by 9
range

48. Percent x whole
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Part
simplify
place value

49. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
compatible numbers
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
product
prime factorization

50. Properties of 0

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