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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. Absolute value of number
Number w/o signs
mixed number
composite number
(Amount of decrease/original whole) x100%

2. Adding/subtracting fractions
simplify
product
compatible numbers
LCM is LCD

3. Be identical or equivalent to
equal
Drop percent - move decimal point two place to left
least
1 dividing by number

4. Dividing fractions
square number
Invert second term - then multiply
expression
Divisible by 2 and 3

5. odd + odd
rational numbers
greater than
terminating decimals
even

6. The expression of a number as a product of prime factors; use a factor tree!
constants
least
common denominator
prime factorization

7. New whole
associative property
Original whole +/- amount of change
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

8. odd + even
divisible
greater than
odd
compensation

9. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
simplify
even number
composite number
Sum of digits divisible by 9

10. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
value
place value
irrational numbers
whole number

11. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
prime factorization
mixed number
ratio
least common multiple

12. To drop a percent
Line up decimal points
compensation
Divide by 100%
numerator

13. Average value
Sum of values/number of values
Divide by 100%
Divide out largest common factor
denominator

14. A shortcut for writing repeated multiplication
exponents
compatible numbers
Middle value
Divisible by 2 and 3

15. A comparison of 2 numbers; one form is a fraction
ratio
denominator
LCM is LCD
decimal

16. Dividing decimals
Add zeros to decimals until all decimals have same number of digits
value
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
mixed number

17. Median
least
odd number
Multiply by 100%
Middle value

18. Relationship in which a number is smaller than another
proportion
less than
greatest
whole number

19. When a number is larger than the other number. Example 65 > 56
greater than
Invert second term - then multiply
Number of desired outcomes/number of total possible outcomes
Middle value

20. Reducing fractions
inverse property
Divide out largest common factor
Number of decimal places is total number of decimals places in factors multiplied
Original whole +/- amount of change

21. Number divisible by 2
Last digit divisible by 2
not equal
value
Multiply by 100%

22. The largest number in a group of numbers
Sum of values/number of values
least common multiple
factor pair
greatest

23. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
fraction
composite number
decimal
common denominator

24. Number divisible by 4
odd
Last two digits divisible by 4
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
expanded form using exponents

25. Number divisible by 5
not equal
associative property
range
Last digit 0 or 5

26. Answer to a division problem
Multiply by 100%
range
Sum of digits divisible by 3
quotient

27. The greatest whole number that is a factor of two or more nonzero whole numbers
decimal
odd number
greatest common factor
Invert second term - then multiply

28. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
divisible
place value
factor
compensation

29. To make a percent
product
Multiply by 100%
Divisible by 2 and 3
factor pair

30. A number that is multiplied by another number to find a producr
Drop percent - move decimal point two place to left
value
Divide by 100%
factor

31. Properties of numbers btw -1 and 1

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32. In 4x4=16 - what is 4?
commutative property
ratio
estimate
root numbers

33. Reciprocal of number
numerator
compatible numbers
least
1 dividing by number

34. The answer to a subtraction problem
odd
Divisible by 2 and 3
Last digit 0 or 5
difference

35. Multiple-event probability
factor
Probability for each event then multiply individual probabilities together
equal
identity property

36. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
compute
prime number
root numbers
digit

37. 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?
simplify
denominator
terminating decimals
product

38. A fraction out of 100 - %
improper fraction
Add zeros to decimals until all decimals have same number of digits
value
percent

39. Multiplying fractions
factor pair
Reduce diagonally/vertically then multiply numerators and denominators
rational numbers
divisible

40. A letter that represents a value that may change
variables
rational numbers
Invert second term - then multiply
compatible numbers

41. Comparing decimal fractions
Original whole +/- amount of change
value
Add zeros to decimals until all decimals have same number of digits
odd

42. The smallest number in a group of numbers
Part
least
(Amount of decrease/original whole) x100%
irrational numbers

43. 1/5 + 1/4=4/20 +5/20 and 20 is the...
estimate
Add zeros to decimals until all decimals have same number of digits
associative property
common denominator

44. Comparing positive fractions
Divide by 100%
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
rational numbers
Sum of values/number of values

45. The difference between the greatest and the least numbers in a set of data.
order of operations
even number
percent
range

46. To perform a calculation - E.g. 2+2=4
Value occurring most frequently
least common multiple
equivalent
compute

47. 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)
number line
commutative property
sum
Number of desired outcomes/number of total possible outcomes

48. 8x8=64 What is 64?
numerator
perfect square
commutative property
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

49. 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)=
not equal
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
expanded form using exponents
distributive property

50. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
digit
repeating decimals
product
compensation