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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. Properties of 0

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2. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
irrational numbers
terminating decimals
estimate
fraction

3. To make a percent
Line up decimal points
Multiply by 100%
Sum of digits divisible by 3
numerator

4. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
simplify
digit
Sum of values/number of values
composite number

5. The difference between the greatest and the least numbers in a set of data.
Number of decimal places is total number of decimals places in factors multiplied
Greater spread in values
associative property
range

6. Probability
Invert second term - then multiply
1 dividing by number
Number of desired outcomes/number of total possible outcomes
difference

7. Standard deviation: greater if...
divisible
Last two digits divisible by 4
expanded form using exponents
Greater spread in values

8. To place a fraction in lowest terms
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
order of operations
constants
simplify

9. New whole
square number
Original whole +/- amount of change
1 dividing by number
exponents

10. odd + even
less than
evaluate
common denominator
odd

11. A value that does not change; any number
constants
perfect square
simplify
inverse property

12. Average value
Sum of values/number of values
Original whole +/- amount of change
place value
Number of desired outcomes/number of total possible outcomes

13. Relationship in which a number is smaller than another
less than
inverse property
variables
factor pair

14. To find the answer for; solve
evaluate
Last digit 0 or 5
proportion
repeating decimals

15. When a number is larger than the other number. Example 65 > 56
odd
expanded form using exponents
Line up decimal points
greater than

16. Percent x whole
Part
factor
square number
fraction

17. Number divisible by 3
Sum of digits divisible by 3
proportion
whole number
place value

18. Two expressions that are set equal to each other; a number sentence with an equal sign
Probability for each event then multiply individual probabilities together
equation
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
least

19. The largest number in a group of numbers
Reduce diagonally/vertically then multiply numerators and denominators
greatest
proportion
digit

20. A comparison of 2 numbers; one form is a fraction
greater than
Middle value
ratio
simplify

21. Not identical or equivalent to
order of operations
not equal
square number
quotient

22. 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
Middle value
Number of decimal places is total number of decimals places in factors multiplied
variables

23. A set of operators - numbers - variables and grouping symbols; no equal sign
Sum of digits divisible by 3
expression
improper fraction
Divide by 100%

24. Adding/subtracting fractions
digit
least
LCM is LCD
product

25. Dividing fractions
Part
factor pair
Invert second term - then multiply
denominator

26. Number divisible by 9
greatest
Sum of digits divisible by 9
Greater spread in values
greater than

27. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
equation
place value
Add zeros to decimals until all decimals have same number of digits
prime number

28. 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
denominator
perfect square
commutative property
inverse property

29. 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)=
factor pair
Drop percent - move decimal point two place to left
odd number
distributive property

30. The answer to a multiplication problem
identity property
factor
Multiply by 100%
product

31. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
Divisible by 2 and 3
fraction
evaluate
equivalent

32. To perform a calculation - E.g. 2+2=4
Invert second term - then multiply
compute
Probability for each event then multiply individual probabilities together
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

33. Multiple-event probability
even number
product
improper fraction
Probability for each event then multiply individual probabilities together

34. 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.
compute
compensation
divisibility by 3 rule
denominator

35. 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)
factor pair
quotient
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
commutative property

36. Comparing positive fractions
Add zeros to decimals until all decimals have same number of digits
denominator
divisible
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

37. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
simplify
whole number
Number of desired outcomes/number of total possible outcomes
digit

38. Comparing decimal fractions
divisible
common denominator
Add zeros to decimals until all decimals have same number of digits
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

39. Properties of numbers btw -1 and 1

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40. Able to be divided evenly (without a remainder)
less than
divisible
Value occurring most frequently
odd number

41. A shortcut for writing repeated multiplication
commutative property
Drop percent - move decimal point two place to left
exponents
Original whole +/- amount of change

42. Properties of 1 and -1

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43. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
Last digit divisible by 2
Sum of values/number of values
odd
order of operations

44. Number divisible by 5
not equal
Sum of digits divisible by 9
Last digit 0 or 5
Sum of values/number of values

45. Answer to a multiplication problem
greatest
equation
Last two digits divisible by 4
product

46. The answer to an addition problem
sum
even number
repeating decimals
Divide by 100%

47. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
equal
divisibility by 3 rule
Original whole +/- amount of change
digit

48. Reducing fractions
associative property
decimal
Divide out largest common factor
commutative property

49. To change a percent to a decimal
commutative property
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Number of decimal places is total number of decimals places in factors multiplied
Drop percent - move decimal point two place to left

50. Be identical or equivalent to
Drop percent - move decimal point two place to left
least common multiple
equal
sum