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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. A shortcut for writing repeated multiplication
number line
exponents
divisible
mixed number

2. Number divisible by 4
Sum of values/number of values
Last two digits divisible by 4
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

3. Percent decrease
compute
denominator
(Amount of decrease/original whole) x100%
whole number

4. To find a number that is close to an exact answer - E.g. 23+24 is around 50
least common multiple
estimate
proportion
evaluate

5. Answer to a multiplication problem
Middle value
least
product
Multiply by 100%

6. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
fraction
range
even number
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

7. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
numerator
not equal
even number

8. Number divisible by 9
greatest
equation
Sum of digits divisible by 9
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

9. A number that is multiplied by another number to find a producr
proportion
associative property
factor
less than

10. A line for representing and graphing numbers. Each point on the line corresponds to a number.
number line
Divide by 100%
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
ratio

11. 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
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
1 dividing by number
least common multiple
inverse property

12. 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
greatest common factor
fraction
composite number
identity property

13. A fraction out of 100 - %
percent
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Total A/total B
Number w/o signs

14. A value that does not change; any number
greatest
constants
rational numbers
product

15. The largest number in a group of numbers
greatest
proportion
expression
prime factorization

16. 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
greatest common factor
least
Reduce diagonally/vertically then multiply numerators and denominators

17. Percent x whole
Number of desired outcomes/number of total possible outcomes
quotient
Part
odd number

18. Comparing positive fractions
not equal
greatest
denominator
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

19. A number with more than two factors
Sum of values/number of values
Divisible by 2 and 3
composite number
equivalent

20. In 4x4=16 - what is 4?
mixed number
root numbers
Reduce diagonally/vertically then multiply numerators and denominators
denominator

21. The answer to an addition problem
perfect square
Original whole +/- amount of change
rational numbers
sum

22. A property of real numbers that states that the sum or product of a set of numbers is the same - regardless of how the numbers are grouped - (a+b)+c=a+(b+c) - e.g. (1+2)+3=1+(2+3)
order of operations
composite number
Last digit divisible by 2
associative property

23. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
Divide out largest common factor
expanded form using exponents
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
product

24. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
Part
least common multiple
perfect square
product

25. Average value
LCM is LCD
Sum of values/number of values
prime factorization
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

26. Properties of 0

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27. 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
Divide by 100%
divisibility by 3 rule
greater than

28. 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)=
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
place value
whole number
distributive property

29. Simplifying complex fractions: two methods
range
Drop percent - move decimal point two place to left
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
expanded form using exponents

30. Reciprocal of number
1 dividing by number
proportion
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
number line

31. Mode
Line up decimal points
least common multiple
Value occurring most frequently
fraction

32. Natural Numbers - Whole Numbers - Integers - Rational Numbers
digit
(Amount of increase/original whole) x100%
Part
rational numbers

33. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
repeating decimals
prime number
divisible
Divide by 100%

34. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Greater spread in values
inverse property
common denominator
(Amount of decrease/original whole) x100%

35. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
greater than
factor pair
number line

36. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
perfect square
digit
not equal

37. Answer to a division problem
place value
greatest
prime number
quotient

38. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
expression
percent
equivalent
repeating decimals

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?
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Value occurring most frequently
denominator
square number

40. When a number is larger than the other number. Example 65 > 56
Reduce diagonally/vertically then multiply numerators and denominators
greater than
quotient
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

41. A number that results from multiplying a factor by itself
square number
digit
Probability for each event then multiply individual probabilities together
Divisible by 2 and 3

42. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
product
less than
odd number
factor

43. Number divisible by 2
common denominator
inverse property
Probability for each event then multiply individual probabilities together
Last digit divisible by 2

44. Properties of numbers btw -1 and 1

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45. Number divisible by 6
Divisible by 2 and 3
factor
sum
Last digit 0 or 5

46. Adding/subtracting decimals
Line up decimal points
Divide out largest common factor
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
evaluate

47. The answer to a multiplication problem
divisibility by 3 rule
improper fraction
product
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

48. odd + even
odd
number line
decimal
Middle value

49. Median
Middle value
Total A/total B
Greater spread in values
percent

50. Relationship in which a number is smaller than another
factor
less than
associative property
whole number