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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. The answer to a multiplication problem
number line
(Amount of increase/original whole) x100%
Multiply by 100%
product

2. Adding/subtracting decimals
expression
Line up decimal points
Last two digits divisible by 4
rational numbers

3. A value that does not change; any number
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
value
constants

4. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
number line
whole number
compute
irrational numbers

5. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
greatest
terminating decimals
equivalent
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

6. The greatest whole number that is a factor of two or more nonzero whole numbers
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
sum
greatest common factor
not equal

7. A property indicating a special way in which multiplication is applied to addition of two or more numbers in which each term inside a set of parentheses can be multiplied by a factor outside the parentheses - such as a(b + c) = ab + ac - or 7x (4+1)=
simplify
Number w/o signs
constants
distributive property

8. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Last digit 0 or 5
constants
variables

9. A shortcut for writing repeated multiplication
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
equal
whole number
exponents

10. Number divisible by 4
factor
identity property
product
Last two digits divisible by 4

11. The expression of a number as a product of prime factors; use a factor tree!
Divisible by 2 and 3
estimate
prime factorization
Invert second term - then multiply

12. 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
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
irrational numbers
odd
denominator

13. The answer to an addition problem
divisibility by 3 rule
sum
greater than
Drop percent - move decimal point two place to left

14. Properties of 0

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15. Number divisible by 9
Drop percent - move decimal point two place to left
even
terminating decimals
Sum of digits divisible by 9

16. Multiplying fractions
even
Reduce diagonally/vertically then multiply numerators and denominators
divisible
(Amount of increase/original whole) x100%

17. In 4x4=16 - what is 4?
quotient
square number
root numbers
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

18. 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
mixed number
compatible numbers
Value occurring most frequently

19. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
divisibility by 3 rule
Probability for each event then multiply individual probabilities together
compute
1 dividing by number

20. The largest number in a group of numbers
associative property
greatest
least
terminating decimals

21. Probability
Number of desired outcomes/number of total possible outcomes
quotient
estimate
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

22. A number that results from multiplying a factor by itself
evaluate
least
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
square number

23. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
Value occurring most frequently
least common multiple
composite number
expanded form using exponents

24. odd + even
odd
LCM is LCD
greatest common factor
Add zeros to decimals until all decimals have same number of digits

25. Adding/subtracting fractions
Last digit divisible by 2
distributive property
Total A/total B
LCM is LCD

26. odd + odd
Divide by 100%
Last digit divisible by 2
Drop percent - move decimal point two place to left
even

27. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
Probability for each event then multiply individual probabilities together
commutative property
repeating decimals
odd number

28. Average A per B
odd
number line
factor
Total A/total B

29. 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?
terminating decimals
denominator
Total A/total B
Last digit divisible by 2

30. Not identical or equivalent to
even
Sum of digits divisible by 3
inverse property
not equal

31. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Multiply by 100%
Sum of digits divisible by 3
common denominator
quotient

32. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
prime number
value
distributive property
greatest common factor

33. Percent x whole
Part
Drop percent - move decimal point two place to left
Original whole +/- amount of change
product

34. A number made up of a whole number and a fraction
percent
mixed number
denominator
ratio

35. New whole
not equal
less than
Sum of values/number of values
Original whole +/- amount of change

36. Answer to a division problem
quotient
Drop percent - move decimal point two place to left
greater than
mixed number

37. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
compatible numbers
variables
associative property
equivalent

38. A comparison of 2 numbers; one form is a fraction
(Amount of decrease/original whole) x100%
equivalent
ratio
Last digit 0 or 5

39. Relationship in which a number is smaller than another
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
quotient
proportion
less than

40. Reducing fractions
inverse property
compensation
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
Divide out largest common factor

41. Simplifying complex fractions: two methods
Greater spread in values
decimal
factor pair
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

42. An equation showing 2 ratios are equal
Value occurring most frequently
odd number
perfect square
proportion

43. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
least common multiple
square number
Number w/o signs
compatible numbers

44. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
constants
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

45. The answer to a subtraction problem
commutative property
Last digit divisible by 2
irrational numbers
difference

46. Multiplying decimals
odd
Number of decimal places is total number of decimals places in factors multiplied
difference
Reduce diagonally/vertically then multiply numerators and denominators

47. To make a percent
compensation
Multiply by 100%
Probability for each event then multiply individual probabilities together
variables

48. The smallest number in a group of numbers
least
percent
Greater spread in values
repeating decimals

49. Average value
denominator
Sum of values/number of values
Last two digits divisible by 4
LCM is LCD

50. To find the answer for; solve
fraction
evaluate
distributive property
product