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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. Relationship in which a number is smaller than another
order of operations
Invert second term - then multiply
Last digit divisible by 2
less than

2. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
value
ratio
even

3. When a number is larger than the other number. Example 65 > 56
percent
(Amount of decrease/original whole) x100%
greater than
Drop percent - move decimal point two place to left

4. An equation showing 2 ratios are equal
Greater spread in values
proportion
Drop percent - move decimal point two place to left
Last digit 0 or 5

5. 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?
Last digit 0 or 5
numerator
digit
expanded form using exponents

6. Number divisible by 9
product
Sum of digits divisible by 9
Total A/total B
common denominator

7. Not identical or equivalent to
exponents
not equal
root numbers
Invert second term - then multiply

8. Properties of numbers btw -1 and 1

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9. Dividing fractions
Invert second term - then multiply
Total A/total B
simplify
compensation

10. A number made up of a whole number and a fraction
mixed number
digit
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
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

11. 8x8=64 What is 64?
perfect square
Probability for each event then multiply individual probabilities together
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
greater than

12. Average A per B
1 dividing by number
Total A/total B
least
associative property

13. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
Add zeros to decimals until all decimals have same number of digits
repeating decimals
Part
number line

14. Probability
Number of desired outcomes/number of total possible outcomes
root numbers
value
Sum of digits divisible by 9

15. Number divisible by 2
Last digit divisible by 2
ratio
least common multiple
commutative property

16. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
not equal
Divisible by 2 and 3
perfect square
terminating decimals

17. The greatest whole number that is a factor of two or more nonzero whole numbers
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Value occurring most frequently
greatest common factor
Number w/o signs

18. 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
proportion
divisibility by 3 rule
common denominator

19. Answer to a multiplication problem
value
percent
product
odd number

20. Comparing decimal fractions
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
Add zeros to decimals until all decimals have same number of digits
Last digit 0 or 5
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

21. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
factor pair
Add zeros to decimals until all decimals have same number of digits
divisibility by 3 rule
simplify

22. A value that does not change; any number
Value occurring most frequently
range
constants
square number

23. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
equivalent
LCM is LCD
even number

24. 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
compensation
irrational numbers
1 dividing by number
divisible

25. The answer to an addition problem
odd
sum
Sum of digits divisible by 9
Last digit 0 or 5

26. A comparison of 2 numbers; one form is a fraction
ratio
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
Sum of digits divisible by 9
prime factorization

27. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
greatest
product
digit
fraction

28. To make a percent
equation
divisible
less than
Multiply by 100%

29. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
numerator
even number
Multiply by 100%
divisibility by 3 rule

30. To find a number that is close to an exact answer - E.g. 23+24 is around 50
mixed number
compensation
even
estimate

31. Two factors together that are multiplied to equal a larger number.
factor pair
Part
simplify
sum

32. A number with one or more digits to the right of the decimal point - E.g. .33
(Amount of decrease/original whole) x100%
constants
variables
decimal

33. Simplifying complex fractions: two methods
whole number
composite number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
numerator

34. The answer to a multiplication problem
composite number
product
Line up decimal points
greater than

35. Multiplying fractions
1 dividing by number
Reduce diagonally/vertically then multiply numerators and denominators
repeating decimals
factor pair

36. Median
Middle value
odd
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Last digit divisible by 2

37. Number divisible by 3
difference
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
Sum of digits divisible by 3
Reduce diagonally/vertically then multiply numerators and denominators

38. A number that is multiplied by another number to find a producr
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
compatible numbers
factor
value

39. A line for representing and graphing numbers. Each point on the line corresponds to a number.
Original whole +/- amount of change
number line
rational numbers
digit

40. Properties of 1 and -1

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41. The smallest number in a group of numbers
range
expanded form using exponents
associative property
least

42. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
product
Drop percent - move decimal point two place to left
least common multiple
Last digit divisible by 2

43. In 4x4=16 - what is 4?
1 dividing by number
sum
Line up decimal points
root numbers

44. Mode
Divisible by 2 and 3
percent
Value occurring most frequently
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

45. Number divisible by 4
prime number
Last two digits divisible by 4
Sum of digits divisible by 9
equal

46. Percent decrease
(Amount of decrease/original whole) x100%
decimal
exponents
numerator

47. Comparing positive fractions
compute
decimal
odd
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

48. Percent increase
order of operations
greatest
factor pair
(Amount of increase/original whole) x100%

49. odd + even
equal
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
rational numbers
odd

50. Average value
prime factorization
difference
Sum of values/number of values
estimate