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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
root numbers
exponents
compensation
distributive property

2. The answer to a multiplication problem
Last digit divisible by 2
Reduce diagonally/vertically then multiply numerators and denominators
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
product

3. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
least common multiple
order of operations
distributive property
root numbers

4. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
even
compute
place value

5. The answer to a subtraction problem
repeating decimals
least common multiple
difference
estimate

6. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
product
whole number
even number
divisibility by 3 rule

7. odd + odd
Last two digits divisible by 4
even
square number
fraction

8. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
not equal
compatible numbers
fraction
Last digit divisible by 2

9. Probability
Number of desired outcomes/number of total possible outcomes
composite number
Divide out largest common factor
Last digit divisible by 2

10. Two factors together that are multiplied to equal a larger number.
denominator
factor pair
prime number
Divisible by 2 and 3

11. Reciprocal of number
1 dividing by number
Divide by 100%
greater than
Invert second term - then multiply

12. Reducing fractions
decimal
Divide out largest common factor
Divisible by 2 and 3
Sum of values/number of values

13. 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)
associative property
evaluate
Original whole +/- amount of change
whole number

14. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Divide by 100%
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
distributive property
terminating decimals

15. The largest number in a group of numbers
Sum of digits divisible by 3
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
greatest
not equal

16. To perform a calculation - E.g. 2+2=4
commutative property
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
compute
greatest common factor

17. Answer to a division problem
least common multiple
equivalent
quotient
LCM is LCD

18. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
product
prime number
decimal
even number

19. 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?
quotient
difference
numerator
compensation

20. Comparing positive fractions
Value occurring most frequently
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
equation
irrational numbers

21. 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
Invert second term - then multiply
perfect square
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

22. A line for representing and graphing numbers. Each point on the line corresponds to a number.
expanded form using exponents
Last digit divisible by 2
number line
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

23. Number divisible by 4
Original whole +/- amount of change
Invert second term - then multiply
Last two digits divisible by 4
perfect square

24. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
repeating decimals
1 dividing by number
Number of desired outcomes/number of total possible outcomes
whole number

25. Number divisible by 6
Drop percent - move decimal point two place to left
not equal
identity property
Divisible by 2 and 3

26. An equation showing 2 ratios are equal
not equal
Sum of values/number of values
proportion
prime number

27. To place a fraction in lowest terms
decimal
variables
simplify
least common multiple

28. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
expanded form using exponents
square number
1 dividing by number
associative property

29. Number divisible by 9
odd number
quotient
Part
Sum of digits divisible by 9

30. The answer to an addition problem
sum
(Amount of decrease/original whole) x100%
not equal
Number of desired outcomes/number of total possible outcomes

31. Be identical or equivalent to
equal
compute
Last two digits divisible by 4
Total A/total B

32. A number made up of a whole number and a fraction
common denominator
mixed number
Divisible by 2 and 3
Divide by 100%

33. In 4x4=16 - what is 4?
root numbers
square number
(Amount of increase/original whole) x100%
composite number

34. Properties of 0

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35. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
decimal
inverse property
terminating decimals

36. Adding/subtracting fractions
Middle value
composite number
LCM is LCD
Drop percent - move decimal point two place to left

37. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Probability for each event then multiply individual probabilities together
common denominator
Line up decimal points
value

38. Percent increase
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
(Amount of increase/original whole) x100%
divisible
Original whole +/- amount of change

39. A value that does not change; any number
Value occurring most frequently
Total A/total B
constants
(Amount of decrease/original whole) x100%

40. 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?
associative property
denominator
estimate
Last digit divisible by 2

41. Percent x whole
digit
Value occurring most frequently
Part
rational numbers

42. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
constants
compatible numbers
Divide by 100%
percent

43. Simplifying complex fractions: two methods
ratio
root numbers
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Original whole +/- amount of change

44. Two expressions that are set equal to each other; a number sentence with an equal sign
less than
odd number
equation
whole number

45. Answer to a multiplication problem
expanded form using exponents
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
product
greater than

46. New whole
Original whole +/- amount of change
mixed number
Last digit 0 or 5
least common multiple

47. A number with more than two factors
root numbers
compensation
odd
composite number

48. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
Last two digits divisible by 4
equivalent
number line
composite number

49. Standard deviation: greater if...
Greater spread in values
Divide by 100%
commutative property
Number w/o signs

50. A number with one or more digits to the right of the decimal point - E.g. .33
variables
decimal
Probability for each event then multiply individual probabilities together
identity property