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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 4
Last two digits divisible by 4
least common multiple
divisibility by 3 rule
common denominator

2. odd + odd
even number
irrational numbers
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
even

3. Number divisible by 5
Last digit 0 or 5
sum
odd
Sum of values/number of values

4. Reducing fractions
Divide out largest common factor
prime number
identity property
greatest

5. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
compatible numbers
equation
odd
percent

6. The answer to a subtraction problem
Divide out largest common factor
difference
even
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

7. Dividing fractions
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
Invert second term - then multiply
factor
denominator

8. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
Last digit 0 or 5
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Part

9. Able to be divided evenly (without a remainder)
rational numbers
irrational numbers
divisible
simplify

10. Relationship in which a number is smaller than another
equal
product
less than
digit

11. To find the answer for; solve
order of operations
evaluate
constants
common denominator

12. A set of operators - numbers - variables and grouping symbols; no equal sign
number line
odd number
expression
numerator

13. Multiple-event probability
digit
Probability for each event then multiply individual probabilities together
Sum of digits divisible by 3
even number

14. A line for representing and graphing numbers. Each point on the line corresponds to a number.
identity property
divisibility by 3 rule
number line
commutative property

15. A fraction out of 100 - %
compatible numbers
product
percent
Add zeros to decimals until all decimals have same number of digits

16. Be identical or equivalent to
compatible numbers
odd
equal
whole number

17. A fraction whose numerator is greater than its denominator
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
improper fraction
Last two digits divisible by 4
(Amount of increase/original whole) x100%

18. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
divisibility by 3 rule
Original whole +/- amount of change
equivalent
root numbers

19. Two expressions that are set equal to each other; a number sentence with an equal sign
square number
prime number
Total A/total B
equation

20. Probability
rational numbers
Last digit 0 or 5
even number
Number of desired outcomes/number of total possible outcomes

21. Answer to a multiplication problem
product
(Amount of increase/original whole) x100%
rational numbers
Number of desired outcomes/number of total possible outcomes

22. A number with more than two factors
expression
composite number
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Invert second term - then multiply

23. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
Divisible by 2 and 3
variables
factor pair
divisibility by 3 rule

24. Number divisible by 6
mixed number
commutative property
quotient
Divisible by 2 and 3

25. Dividing decimals
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
sum
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
equation

26. Standard deviation: greater if...
Greater spread in values
even number
Reduce diagonally/vertically then multiply numerators and denominators
compute

27. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
commutative property
Sum of digits divisible by 3
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

28. Answer to a division problem
terminating decimals
root numbers
quotient
expanded form using exponents

29. To drop a percent
Reduce diagonally/vertically then multiply numerators and denominators
Divide by 100%
fraction
Multiply by 100%

30. 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.
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
compensation
Invert second term - then multiply
(Amount of increase/original whole) x100%

31. Properties of 0

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32. Mode
mixed number
Value occurring most frequently
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
proportion

33. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Invert second term - then multiply
estimate
mixed number
value

34. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
least common multiple
digit
simplify
root numbers

35. Percent increase
place value
greater than
(Amount of increase/original whole) x100%
even

36. The largest number in a group of numbers
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
greatest
compute
Sum of values/number of values

37. A number with one or more digits to the right of the decimal point - E.g. .33
Sum of digits divisible by 9
Middle value
greatest
decimal

38. 1/5 + 1/4=4/20 +5/20 and 20 is the...
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
common denominator
Drop percent - move decimal point two place to left

39. A comparison of 2 numbers; one form is a fraction
Invert second term - then multiply
ratio
greatest common factor
Sum of digits divisible by 9

40. Not identical or equivalent to
Reduce diagonally/vertically then multiply numerators and denominators
estimate
not equal
Invert second term - then multiply

41. A shortcut for writing repeated multiplication
factor pair
exponents
least
evaluate

42. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
whole number
expanded form using exponents
Greater spread in values
terminating decimals

43. The answer to a multiplication problem
compatible numbers
product
(Amount of decrease/original whole) x100%
exponents

44. Average value
numerator
Sum of values/number of values
number line
whole number

45. Number divisible by 2
compute
Divide by 100%
Last digit divisible by 2
ratio

46. To make a percent
Number of decimal places is total number of decimals places in factors multiplied
Multiply by 100%
greater than
distributive property

47. odd + even
equation
odd
inverse property
LCM is LCD

48. 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)=
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Number w/o signs
Last two digits divisible by 4
distributive property

49. Properties of 1 and -1

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50. Comparing decimal fractions
value
not equal
divisible
Add zeros to decimals until all decimals have same number of digits