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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. Percent increase
improper fraction
(Amount of increase/original whole) x100%
percent
digit

2. 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
Drop percent - move decimal point two place to left
digit
divisible

3. Properties of numbers btw -1 and 1

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4. Answer to a multiplication problem
equation
difference
product
Probability for each event then multiply individual probabilities together

5. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
terminating decimals
rational numbers
proportion
Number of desired outcomes/number of total possible outcomes

6. How much a number is worth
Last digit divisible by 2
fraction
value
Value occurring most frequently

7. Not identical or equivalent to
Divisible by 2 and 3
not equal
square number
prime factorization

8. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
commutative property
repeating decimals
exponents
estimate

9. Relationship in which a number is smaller than another
factor
even
less than
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

10. 8x8=64 What is 64?
Multiply by 100%
perfect square
Sum of digits divisible by 9
not equal

11. New whole
decimal
Original whole +/- amount of change
improper fraction
Sum of digits divisible by 3

12. To find the answer for; solve
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
evaluate
Sum of digits divisible by 9

13. Simplifying complex fractions: two methods
Sum of digits divisible by 9
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Reduce diagonally/vertically then multiply numerators and denominators
Number w/o signs

14. Number divisible by 4
(Amount of decrease/original whole) x100%
Last two digits divisible by 4
decimal
exponents

15. Number divisible by 6
Divisible by 2 and 3
divisible
odd number
rational numbers

16. To make a percent
Number w/o signs
Invert second term - then multiply
place value
Multiply by 100%

17. Absolute value of number
Greater spread in values
commutative property
Number w/o signs
least common multiple

18. Reciprocal of number
place value
Sum of values/number of values
1 dividing by number
Part

19. 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
constants
numerator
expression

20. A number made up of a whole number and a fraction
digit
mixed number
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
distributive property

21. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
even number
inverse property
Total A/total B
estimate

22. Percent decrease
percent
Line up decimal points
(Amount of decrease/original whole) x100%
sum

23. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
Divide out largest common factor
root numbers
equivalent

24. The greatest whole number that is a factor of two or more nonzero whole numbers
greatest common factor
percent
equal
Sum of digits divisible by 9

25. Mode
Divide by 100%
equivalent
least
Value occurring most frequently

26. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
value
fraction
place value

27. A comparison of 2 numbers; one form is a fraction
root numbers
Total A/total B
ratio
proportion

28. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
rational numbers
place value
perfect square
Last digit 0 or 5

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

30. odd + even
odd
digit
identity property
ratio

31. Number divisible by 5
simplify
compensation
Last digit 0 or 5
fraction

32. 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
constants
irrational numbers
associative property
(Amount of increase/original whole) x100%

33. A shortcut for writing repeated multiplication
root numbers
product
equal
exponents

34. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
Add zeros to decimals until all decimals have same number of digits
associative property
greatest
compatible numbers

35. Adding/subtracting fractions
distributive property
decimal
LCM is LCD
ratio

36. Dividing fractions
Invert second term - then multiply
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
constants
Line up decimal points

37. A letter that represents a value that may change
variables
root numbers
constants
even number

38. 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
greater than
square number
variables
identity property

39. 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?
greatest common factor
numerator
expression
order of operations

40. A number with one or more digits to the right of the decimal point - E.g. .33
number line
decimal
Number w/o signs
numerator

41. Answer to a division problem
Divisible by 2 and 3
quotient
place value
common denominator

42. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
sum
associative property
order of operations
even number

43. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
constants
whole number
divisible
digit

44. The expression of a number as a product of prime factors; use a factor tree!
irrational numbers
prime factorization
least common multiple
associative property

45. The answer to a multiplication problem
product
Sum of digits divisible by 9
even number
Last two digits divisible by 4

46. To drop a percent
Divide by 100%
digit
rational numbers
Middle value

47. In 4x4=16 - what is 4?
Middle value
root numbers
Value occurring most frequently
Invert second term - then multiply

48. The smallest number in a group of numbers
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
greatest
least
root numbers

49. To perform a calculation - E.g. 2+2=4
even
equal
compute
improper fraction

50. An equation showing 2 ratios are equal
product
greatest common factor
proportion
terminating decimals