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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. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Sum of digits divisible by 3
Add zeros to decimals until all decimals have same number of digits
terminating decimals
distributive property

2. The largest number in a group of numbers
Divide by 100%
(Amount of increase/original whole) x100%
whole number
greatest

3. 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
whole number
identity property
perfect square
Probability for each event then multiply individual probabilities together

4. A number with one or more digits to the right of the decimal point - E.g. .33
decimal
Number of decimal places is total number of decimals places in factors multiplied
prime factorization
fraction

5. Multiplying fractions
improper fraction
equal
Reduce diagonally/vertically then multiply numerators and denominators
expression

6. Properties of numbers btw -1 and 1

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7. Average value
greater than
constants
Sum of values/number of values
Total A/total B

8. Comparing positive fractions
Reduce diagonally/vertically then multiply numerators and denominators
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
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

9. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
expanded form using exponents
terminating 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
evaluate

10. The answer to a multiplication problem
numerator
LCM is LCD
product
Part

11. The answer to a subtraction problem
quotient
difference
irrational numbers
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

12. A number that results from multiplying a factor by itself
square number
equivalent
numerator
compute

13. Be identical or equivalent to
equal
distributive property
expression
range

14. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
constants
common denominator
compatible numbers
repeating decimals

15. To find the answer for; solve
Multiply by 100%
Last two digits divisible by 4
evaluate
least

16. To find a number that is close to an exact answer - E.g. 23+24 is around 50
estimate
prime factorization
evaluate
Last digit 0 or 5

17. Standard deviation: greater if...
Number w/o signs
rational numbers
odd
Greater spread in values

18. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
identity property
square number
Sum of values/number of values
least common multiple

19. To place a fraction in lowest terms
range
compensation
simplify
not equal

20. The greatest whole number that is a factor of two or more nonzero whole numbers
prime number
irrational numbers
whole number
greatest common factor

21. 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
compatible numbers
least common multiple
inverse property
Value occurring most frequently

22. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
odd number
whole number
ratio
terminating decimals

23. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
associative property
order of operations
equivalent
fraction

24. A number that is multiplied by another number to find a producr
digit
composite number
associative property
factor

25. The smallest number in a group of numbers
Middle value
commutative property
least
distributive property

26. Probability
Number of desired outcomes/number of total possible outcomes
Greater spread in values
product
greater than

27. Adding/subtracting decimals
greatest common factor
Line up decimal points
even
product

28. Percent increase
Last two digits divisible by 4
exponents
(Amount of increase/original whole) x100%
Multiply by 100%

29. Mode
Line up decimal points
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
evaluate
Value occurring most frequently

30. How much a number is worth
Last two digits divisible by 4
value
equation
odd number

31. Absolute value of number
Number w/o signs
least
repeating decimals
Last two digits divisible by 4

32. Answer to a division problem
even
quotient
order of operations
divisibility by 3 rule

33. Dividing decimals
numerator
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
common denominator
proportion

34. Relationship in which a number is smaller than another
even
equation
less than
(Amount of decrease/original whole) x100%

35. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
product
1 dividing by number
expression

36. When a number is larger than the other number. Example 65 > 56
Add zeros to decimals until all decimals have same number of digits
fraction
greater than
Value occurring most frequently

37. To change a percent to a decimal
mixed number
odd
proportion
Drop percent - move decimal point two place to left

38. 8x8=64 What is 64?
exponents
prime factorization
perfect square
commutative property

39. 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
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
improper fraction
Sum of digits divisible by 3

40. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
repeating decimals
sum
fraction
simplify

41. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
equivalent
variables
odd
commutative property

42. Two expressions that are set equal to each other; a number sentence with an equal sign
root numbers
equation
exponents
equivalent

43. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
repeating decimals
not equal
common denominator
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

44. In 4x4=16 - what is 4?
prime factorization
root numbers
common denominator
whole number

45. 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
irrational numbers
quotient
LCM is LCD
Number w/o signs

46. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
value
least
place value
Invert second term - then multiply

47. The answer to an addition problem
compensation
improper fraction
expression
sum

48. A line for representing and graphing numbers. Each point on the line corresponds to a number.
number line
associative property
difference
simplify

49. 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)
proportion
associative property
factor
divisible

50. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
prime number
expression
Number of decimal places is total number of decimals places in factors multiplied
whole number