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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 fraction whose numerator is greater than its denominator
Part
improper fraction
Sum of digits divisible by 9
Original whole +/- amount of change

2. A shortcut for writing repeated multiplication
even
identity property
product
exponents

3. Two factors together that are multiplied to equal a larger number.
(Amount of decrease/original whole) x100%
Sum of digits divisible by 3
root numbers
factor pair

4. Percent increase
decimal
whole number
(Amount of increase/original whole) x100%
estimate

5. A set of operators - numbers - variables and grouping symbols; no equal sign
numerator
Multiply by 100%
divisible
expression

6. odd + odd
root numbers
Invert second term - then multiply
even
rational numbers

7. Average value
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 values/number of values
root numbers
Number w/o signs

8. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
equivalent
root numbers
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
Number of desired outcomes/number of total possible outcomes

9. How much a number is worth
whole number
Original whole +/- amount of change
simplify
value

10. The difference between the greatest and the least numbers in a set of data.
root numbers
Total A/total B
repeating decimals
range

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
expanded form using exponents
fraction
inverse property
evaluate

12. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
repeating decimals
Number of desired outcomes/number of total possible outcomes
(Amount of increase/original whole) x100%
less than

13. The largest number in a group of numbers
Number of desired outcomes/number of total possible outcomes
greatest common factor
numerator
greatest

14. The answer to an addition problem
even number
Sum of digits divisible by 9
sum
irrational numbers

15. Median
Middle value
repeating decimals
composite number
1 dividing by number

16. Adding/subtracting fractions
LCM is LCD
perfect square
inverse property
associative property

17. The greatest whole number that is a factor of two or more nonzero whole numbers
divisible
numerator
greatest common factor
Last two digits divisible by 4

18. A number with one or more digits to the right of the decimal point - E.g. .33
Line up decimal points
decimal
divisibility by 3 rule
Multiply by 100%

19. To change a percent to a decimal
perfect square
Drop percent - move decimal point two place to left
factor
value

20. 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)=
decimal
distributive property
difference
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

21. Mode
Value occurring most frequently
greater than
Drop percent - move decimal point two place to left
LCM is LCD

22. Number divisible by 4
odd number
denominator
Last two digits divisible by 4
distributive property

23. Number divisible by 5
distributive property
Last digit 0 or 5
ratio
common denominator

24. A comparison of 2 numbers; one form is a fraction
proportion
ratio
root numbers
order of operations

25. 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.
sum
Total A/total B
compensation
even

26. Absolute value of number
not equal
greater than
Number w/o signs
(Amount of decrease/original whole) x100%

27. Multiple-event probability
least
prime factorization
Sum of digits divisible by 9
Probability for each event then multiply individual probabilities together

28. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
terminating decimals
least common multiple
divisibility by 3 rule
1 dividing by number

29. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
repeating decimals
identity property
prime number

30. A value that does not change; any number
Line up decimal points
Probability for each event then multiply individual probabilities together
compatible numbers
constants

31. Dividing fractions
Sum of values/number of values
Last digit divisible by 2
Invert second term - then multiply
Line up decimal points

32. New whole
Original whole +/- amount of change
Divide by 100%
odd
order of operations

33. Number divisible by 9
divisible
sum
Sum of digits divisible by 9
quotient

34. The smallest number in a group of numbers
Number w/o signs
rational numbers
Number of desired outcomes/number of total possible outcomes
least

35. 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
identity property
expanded form using exponents
product
compatible numbers

36. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
even number
improper fraction
percent
Divide by 100%

37. Multiplying decimals
identity property
(Amount of decrease/original whole) x100%
Number of decimal places is total number of decimals places in factors multiplied
place value

38. Standard deviation: greater if...
terminating decimals
Divide out largest common factor
compatible numbers
Greater spread in values

39. Reciprocal of number
compute
compatible numbers
Last two digits divisible by 4
1 dividing by number

40. Number divisible by 6
Divisible by 2 and 3
greatest
identity property
Last digit divisible by 2

41. Adding/subtracting decimals
irrational numbers
Sum of values/number of values
equivalent
Line up decimal points

42. A number made up of a whole number and a fraction
Sum of digits divisible by 3
root numbers
factor pair
mixed number

43. Answer to a division problem
fraction
quotient
rational numbers
1 dividing by number

44. Properties of numbers btw -1 and 1

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45. The expression of a number as a product of prime factors; use a factor tree!
prime factorization
associative property
less than
Number of decimal places is total number of decimals places in factors multiplied

46. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
perfect square
divisibility by 3 rule
common denominator
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

47. 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)
quotient
evaluate
composite number
associative property

48. Dividing decimals
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
distributive property
decimal
Divisible by 2 and 3

49. Properties of 1 and -1

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50. 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?
numerator
exponents
repeating decimals
(Amount of decrease/original whole) x100%