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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. Comparing positive fractions
compute
odd
Line up decimal points
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

2. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
Last digit 0 or 5
divisibility by 3 rule
equation
least common multiple

3. A number made up of a whole number and a fraction
mixed number
Total A/total B
even 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

4. Comparing decimal fractions
factor
Add zeros to decimals until all decimals have same number of digits
order of operations
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

5. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
perfect square
inverse property
even
prime number

6. Two factors together that are multiplied to equal a larger number.
percent
perfect square
factor pair
whole number

7. 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
greater than
number line
least common multiple

8. Able to be divided evenly (without a remainder)
divisible
Total A/total B
constants
percent

9. Number divisible by 4
even number
number line
Last two digits divisible by 4
1 dividing by number

10. A number that results from multiplying a factor by itself
greater than
root numbers
factor pair
square number

11. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
equivalent
Line up decimal points
commutative property

12. A value that does not change; any number
Last digit 0 or 5
quotient
not equal
constants

13. A set of operators - numbers - variables and grouping symbols; no equal sign
Middle value
expression
divisible
Sum of values/number of values

14. Adding/subtracting decimals
constants
odd number
composite number
Line up decimal points

15. Not identical or equivalent to
Greater spread in values
not equal
Divisible by 2 and 3
proportion

16. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
constants
number line
compatible numbers
perfect square

17. odd + odd
Sum of digits divisible by 3
even
composite number
Reduce diagonally/vertically then multiply numerators and denominators

18. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
product
exponents
product
equivalent

19. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
even
Sum of digits divisible by 9
divisible
fraction

20. Average value
composite number
divisibility by 3 rule
even
Sum of values/number of values

21. 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)
Line up decimal points
identity property
mixed number
associative property

22. Properties of 0

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23. A number with one or more digits to the right of the decimal point - E.g. .33
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
Sum of digits divisible by 9
decimal
least

24. 8x8=64 What is 64?
perfect square
equation
repeating decimals
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

25. Be identical or equivalent to
even number
equal
estimate
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

26. The answer to a multiplication problem
terminating decimals
percent
Total A/total B
product

27. Number divisible by 2
Number w/o signs
variables
even
Last digit divisible by 2

28. The greatest whole number that is a factor of two or more nonzero whole numbers
Middle value
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
greatest common factor
Sum of values/number of values

29. 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
fraction
Divisible by 2 and 3
square number

30. 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)=
Number of desired outcomes/number of total possible outcomes
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
exponents

31. Natural Numbers - Whole Numbers - Integers - Rational Numbers
commutative property
rational numbers
Last digit 0 or 5
(Amount of decrease/original whole) x100%

32. odd + even
odd
constants
Number of decimal places is total number of decimals places in factors multiplied
Drop percent - move decimal point two place to left

33. Mode
simplify
Sum of digits divisible by 3
Value occurring most frequently
decimal

34. Answer to a division problem
divisibility by 3 rule
quotient
value
commutative property

35. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
Divisible by 2 and 3
common denominator
ratio
expanded form using exponents

36. A line for representing and graphing numbers. Each point on the line corresponds to a number.
digit
number line
expression
odd

37. Standard deviation: greater if...
variables
digit
Divisible by 2 and 3
Greater spread in values

38. Number divisible by 5
constants
Last digit 0 or 5
Divide by 100%
Number of decimal places is total number of decimals places in factors multiplied

39. The difference between the greatest and the least numbers in a set of data.
number line
numerator
square number
range

40. 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
inverse property
least common multiple
less than
digit

41. 1/5 + 1/4=4/20 +5/20 and 20 is the...
ratio
whole number
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
common denominator

42. Number divisible by 3
Sum of digits divisible by 3
expanded form using exponents
estimate
(Amount of decrease/original whole) x100%

43. An equation showing 2 ratios are equal
even
proportion
terminating decimals
product

44. A fraction whose numerator is greater than its denominator
associative property
evaluate
improper fraction
less than

45. Number divisible by 6
divisibility by 3 rule
Sum of values/number of values
Divisible by 2 and 3
Last two digits divisible by 4

46. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
greatest
mixed number
odd number
expression

47. Probability
exponents
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Number of desired outcomes/number of total possible outcomes
rational numbers

48. Adding/subtracting fractions
(Amount of increase/original whole) x100%
LCM is LCD
Sum of digits divisible by 3
place value

49. Average A per B
irrational numbers
Last two digits divisible by 4
improper fraction
Total A/total B

50. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
Last digit divisible by 2
evaluate
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
repeating decimals