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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 number with one or more digits to the right of the decimal point - E.g. .33
variables
divisible
decimal
Divisible by 2 and 3

2. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Number of decimal places is total number of decimals places in factors multiplied
odd
estimate
Number w/o signs

3. To find the answer for; solve
Add zeros to decimals until all decimals have same number of digits
equal
prime number
evaluate

4. A line for representing and graphing numbers. Each point on the line corresponds to a number.
digit
equation
Original whole +/- amount of change
number line

5. Percent x whole
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
constants
decimal
Part

6. The expression of a number as a product of prime factors; use a factor tree!
mixed number
prime factorization
compensation
equation

7. The answer to a multiplication problem
inverse property
product
greatest
Invert second term - then multiply

8. A value that does not change; any number
Greater spread in values
constants
irrational numbers
square number

9. A fraction out of 100 - %
terminating decimals
Sum of digits divisible by 3
irrational numbers
percent

10. Dividing fractions
perfect square
denominator
Invert second term - then multiply
difference

11. Percent increase
distributive property
Divide by 100%
(Amount of increase/original whole) x100%
even

12. Two expressions that are set equal to each other; a number sentence with an equal sign
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
equation
compute
evaluate

13. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
equal
Last digit divisible by 2
variables
odd number

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

15. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
prime number
numerator
Multiply by 100%
(Amount of decrease/original whole) x100%

16. The difference between the greatest and the least numbers in a set of data.
Value occurring most frequently
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
rational numbers
range

17. Reciprocal of number
1 dividing by number
Invert second term - then multiply
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
equal

18. Natural Numbers - Whole Numbers - Integers - Rational Numbers
whole number
rational numbers
composite number
product

19. Number divisible by 3
Sum of digits divisible by 9
Greater spread in values
distributive property
Sum of digits divisible by 3

20. 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?
compatible numbers
prime number
numerator
Total A/total B

21. Be identical or equivalent to
odd
equal
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
Last digit 0 or 5

22. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
compute
difference
whole number
equation

23. odd + even
divisible
odd
Divisible by 2 and 3
prime factorization

24. 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
Part
compute
inverse property
LCM is LCD

25. The largest number in a group of numbers
difference
odd number
rational numbers
greatest

26. A letter that represents a value that may change
number line
factor
proportion
variables

27. Number divisible by 9
Divide out largest common factor
Sum of digits divisible by 9
Middle value
Invert second term - then multiply

28. Answer to a division problem
Greater spread in values
quotient
odd
Last digit divisible by 2

29. Number divisible by 4
Last two digits divisible by 4
less than
sum
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

30. Mode
inverse property
compensation
numerator
Value occurring most frequently

31. odd + odd
equal
evaluate
Add zeros to decimals until all decimals have same number of digits
even

32. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
repeating decimals
1 dividing by number
Middle value
Line up decimal points

33. Percent decrease
(Amount of decrease/original whole) x100%
perfect square
Middle value
Reduce diagonally/vertically then multiply numerators and denominators

34. 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)
sum
value
commutative property
perfect square

35. Properties of 0

36. The smallest number in a group of numbers
least
Greater spread in values
(Amount of increase/original whole) x100%
even

37. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
Divide out largest common factor
expression
Greater spread in values

38. Simplifying complex fractions: two methods
expression
common denominator
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
associative property

39. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
even number
prime number
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
digit

40. 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)
variables
associative property
Last two digits divisible by 4
Number w/o signs

41. Adding/subtracting decimals
Sum of digits divisible by 3
compatible numbers
difference
Line up decimal points

42. The greatest whole number that is a factor of two or more nonzero whole numbers
greatest common factor
composite number
number line
distributive property

43. Properties of 1 and -1

44. 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
Divisible by 2 and 3
Probability for each event then multiply individual probabilities together
Part

45. To drop a percent
Divide by 100%
root numbers
(Amount of decrease/original whole) x100%
1 dividing by number

46. New whole
even number
Original whole +/- amount of change
greater than
fraction

47. A number with more than two factors
equal
quotient
composite number
divisible

48. To make a percent
Multiply by 100%
identity property
range
repeating decimals

49. Not identical or equivalent to
range
not equal
greatest common factor
divisibility by 3 rule

50. A set of operators - numbers - variables and grouping symbols; no equal sign
prime number
Value occurring most frequently
Invert second term - then multiply
expression