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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. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
product
Divide by 100%
Reduce diagonally/vertically then multiply numerators and denominators
equivalent

2. A number that results from multiplying a factor by itself
terminating decimals
square number
compute
prime factorization

3. Probability
Number of desired outcomes/number of total possible outcomes
identity property
whole number
Divide by 100%

4. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
identity property
Total A/total B
Number of desired outcomes/number of total possible outcomes
repeating decimals

5. Be identical or equivalent to
equal
(Amount of increase/original whole) x100%
Original whole +/- amount of change
associative property

6. A shortcut for writing repeated multiplication
exponents
equivalent
composite number
improper fraction

7. Answer to a multiplication problem
Line up decimal points
expression
product
divisibility by 3 rule

8. An equation showing 2 ratios are equal
equation
proportion
Value occurring most frequently
Number of decimal places is total number of decimals places in factors multiplied

9. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
Probability for each event then multiply individual probabilities together
Total A/total B
greatest common factor

10. Adding/subtracting decimals
Line up decimal points
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Original whole +/- amount of change
Number of desired outcomes/number of total possible outcomes

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

12. The answer to a multiplication problem
prime factorization
Number of decimal places is total number of decimals places in factors multiplied
compensation
product

13. Reciprocal of number
numerator
product
prime number
1 dividing by number

14. A number with one or more digits to the right of the decimal point - E.g. .33
order of operations
decimal
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
root numbers

15. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
Number w/o signs
associative property
Probability for each event then multiply individual probabilities together

16. To make a percent
Invert second term - then multiply
Last two digits divisible by 4
Multiply by 100%
least

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

18. To drop a percent
Divide by 100%
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
compute
odd

19. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
even number
expression
Last digit divisible by 2
value

20. The expression of a number as a product of prime factors; use a factor tree!
least common multiple
prime factorization
compensation
number line

21. Natural Numbers - Whole Numbers - Integers - Rational Numbers
simplify
(Amount of decrease/original whole) x100%
LCM is LCD
rational numbers

22. Number divisible by 2
ratio
Sum of values/number of values
Last digit divisible by 2
Line up decimal points

23. A letter that represents a value that may change
Add zeros to decimals until all decimals have same number of digits
variables
square number
LCM is LCD

24. 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.
composite number
compensation
Divide out largest common factor
sum

25. A line for representing and graphing numbers. Each point on the line corresponds to a number.
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
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
number line

26. The smallest number in a group of numbers
fraction
least
inverse property
Number of decimal places is total number of decimals places in factors multiplied

27. Simplifying complex fractions: two methods
equal
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Last digit divisible by 2
inverse property

28. To place a fraction in lowest terms
simplify
percent
order of operations
common denominator

29. The answer to an addition problem
sum
constants
product
Multiply by 100%

30. The bottom number in a fraction; tells how many parts a whole is divided into OR how many parts in a group - E.g. 2/4 and what position is the 4?
composite number
Probability for each event then multiply individual probabilities together
denominator
even

31. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
prime factorization
Reduce diagonally/vertically then multiply numerators and denominators
compatible numbers
1 dividing by number

32. 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)
greatest common factor
equal
commutative property
(Amount of decrease/original whole) x100%

33. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
digit
place value
Add zeros to decimals until all decimals have same number of digits
sum

34. Absolute value of number
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Number w/o signs
denominator
factor pair

35. Dividing fractions
equivalent
Invert second term - then multiply
associative property
denominator

36. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Sum of digits divisible by 9
estimate
Add zeros to decimals until all decimals have same number of digits
prime factorization

37. Number divisible by 4
Last two digits divisible by 4
exponents
Sum of digits divisible by 9
compute

38. To find the answer for; solve
decimal
constants
evaluate
product

39. Dividing decimals
factor pair
inverse property
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
number line

40. Average value
Sum of values/number of values
Original whole +/- amount of change
estimate
expanded form using exponents

41. odd + even
proportion
exponents
odd
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

42. In 4x4=16 - what is 4?
root numbers
Sum of values/number of values
rational numbers
constants

43. Average A per B
Total A/total B
decimal
(Amount of increase/original whole) x100%
equation

44. 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
odd number
Sum of digits divisible by 3
inverse property
irrational numbers

45. New whole
Total A/total B
Original whole +/- amount of change
product
product

46. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
rational numbers
Number of desired outcomes/number of total possible outcomes
fraction

47. Multiple-event probability
common denominator
Probability for each event then multiply individual probabilities together
equivalent
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

48. 8x8=64 What is 64?
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Divide by 100%
perfect square
Part

49. The largest number in a group of numbers
evaluate
greatest
ratio
compute

50. A value that does not change; any number
constants
digit
percent
Number w/o signs