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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. Number divisible by 2
Last digit divisible by 2
odd number
perfect square
ratio

2. Multiple-event probability
Sum of values/number of values
quotient
Probability for each event then multiply individual probabilities together
Number of decimal places is total number of decimals places in factors multiplied

3. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Middle value
order of operations
associative property
estimate

4. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
equivalent
Part
value
not equal

5. 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
denominator
identity property
Last digit divisible by 2
compensation

6. Number divisible by 9
difference
composite number
Sum of digits divisible by 9
Multiply by 100%

7. 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
terminating decimals
inverse property
Probability for each event then multiply individual probabilities together
product

8. Reciprocal of number
number line
proportion
1 dividing by number
Reduce diagonally/vertically then multiply numerators and denominators

9. Reducing fractions
Sum of digits divisible by 9
place value
identity property
Divide out largest common factor

10. A line for representing and graphing numbers. Each point on the line corresponds to a number.
whole number
greater than
Last digit 0 or 5
number line

11. A comparison of 2 numbers; one form is a fraction
Last digit 0 or 5
Original whole +/- amount of change
ratio
estimate

12. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
Last two digits divisible by 4
Sum of values/number of values
equal

13. Median
Middle value
equal
least
root numbers

14. The difference between the greatest and the least numbers in a set of data.
Divisible by 2 and 3
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
whole number
range

15. The smallest number in a group of numbers
least
Number of decimal places is total number of decimals places in factors multiplied
Add zeros to decimals until all decimals have same number of digits
not equal

16. The greatest whole number that is a factor of two or more nonzero whole numbers
composite number
greatest common factor
exponents
Number of decimal places is total number of decimals places in factors multiplied

17. Dividing decimals
divisibility by 3 rule
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
divisible
numerator

18. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
quotient
digit
Original whole +/- amount of change
Sum of digits divisible by 9

19. A fraction whose numerator is greater than its denominator
place value
improper fraction
Value occurring most frequently
divisible

20. 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
least common multiple
irrational numbers
composite number
least

21. A value that does not change; any number
compensation
difference
prime number
constants

22. odd + odd
irrational numbers
product
ratio
even

23. Multiplying fractions
composite number
greatest
Reduce diagonally/vertically then multiply numerators and denominators
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

24. To make a percent
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
order of operations
decimal
Multiply by 100%

25. An equation showing 2 ratios are equal
equation
proportion
simplify
evaluate

26. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
Invert second term - then multiply
Middle value
product
whole number

27. The answer to a multiplication problem
inverse property
product
proportion
Last two digits divisible by 4

28. A number that results from multiplying a factor by itself
decimal
difference
square number
equivalent

29. A number that is multiplied by another number to find a producr
Drop percent - move decimal point two place to left
factor
odd number
terminating decimals

30. A letter that represents a value that may change
Original whole +/- amount of change
variables
numerator
1 dividing by number

31. How much a number is worth
least
value
1 dividing by number
factor pair

32. Standard deviation: greater if...
Drop percent - move decimal point two place to left
equivalent
Greater spread in values
Sum of digits divisible by 9

33. Percent x whole
Original whole +/- amount of change
Part
Invert second term - then multiply
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

34. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
proportion
numerator
factor pair
place value

35. Number divisible by 4
Last two digits divisible by 4
compatible numbers
denominator
constants

36. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Add zeros to decimals until all decimals have same number of digits
percent
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
common denominator

37. Two factors together that are multiplied to equal a larger number.
factor pair
Probability for each event then multiply individual probabilities together
Value occurring most frequently
sum

38. Number divisible by 5
Last digit 0 or 5
evaluate
whole number
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. A set of operators - numbers - variables and grouping symbols; no equal sign
compatible numbers
equivalent
range
expression

40. New whole
square number
identity property
Original whole +/- amount of change
Sum of digits divisible by 9

41. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
Middle value
even number
Sum of digits divisible by 3

42. A shortcut for writing repeated multiplication
exponents
prime number
improper fraction
odd

43. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
associative property
Original whole +/- amount of change
digit
order of operations

44. Answer to a division problem
even
quotient
expanded form using exponents
Last digit divisible by 2

45. To find the answer for; solve
Greater spread in values
Total A/total B
evaluate
1 dividing by number

46. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
Last digit 0 or 5
Original whole +/- amount of change
Sum of digits divisible by 3
divisibility by 3 rule

47. 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
equal
irrational numbers
identity property

48. Number divisible by 3
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 digits divisible by 3
even
equation

49. Be identical or equivalent to
mixed number
equal
Last two digits divisible by 4
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

50. 8x8=64 What is 64?
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Sum of digits divisible by 9
Middle value
perfect square