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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 factors together that are multiplied to equal a larger number.
factor pair
common denominator
proportion
compute

2. The expression of a number as a product of prime factors; use a factor tree!
inverse property
Divide out largest common factor
Line up decimal points
prime factorization

3. Properties of 0

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4. A shortcut for writing repeated multiplication
compensation
place value
LCM is LCD
exponents

5. 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
exponents
whole number
place value

6. Number divisible by 5
digit
compute
Last digit 0 or 5
Reduce diagonally/vertically then multiply numerators and denominators

7. Percent x whole
Divisible by 2 and 3
Number of desired outcomes/number of total possible outcomes
square number
Part

8. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
difference
prime number
Sum of digits divisible by 3
compatible numbers

9. A letter that represents a value that may change
square number
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
divisible
variables

10. To change a percent to a decimal
equal
Drop percent - move decimal point two place to left
quotient
range

11. A comparison of 2 numbers; one form is a fraction
Line up decimal points
exponents
ratio
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

12. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
odd number
value
percent
(Amount of decrease/original whole) x100%

13. Number divisible by 3
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Sum of digits divisible by 3
inverse property
greatest

14. To place a fraction in lowest terms
simplify
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
sum
expression

15. Adding/subtracting decimals
equivalent
even number
Line up decimal points
(Amount of decrease/original whole) x100%

16. Number divisible by 9
factor pair
Divide by 100%
inverse property
Sum of digits divisible by 9

17. 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
equation
Probability for each event then multiply individual probabilities together
expanded form using exponents
inverse property

18. The difference between the greatest and the least numbers in a set of data.
identity property
factor pair
range
Sum of digits divisible by 9

19. To find the answer for; solve
evaluate
percent
greater than
repeating decimals

20. Percent increase
(Amount of increase/original whole) x100%
Invert second term - then multiply
factor
difference

21. A number with one or more digits to the right of the decimal point - E.g. .33
range
not equal
decimal
difference

22. To find a number that is close to an exact answer - E.g. 23+24 is around 50
ratio
estimate
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
associative property

23. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
even number
greatest
prime number
factor pair

24. Answer to a multiplication problem
evaluate
constants
variables
product

25. The largest number in a group of numbers
Value occurring most frequently
denominator
greatest
Greater spread in values

26. Multiplying decimals
number line
Number of decimal places is total number of decimals places in factors multiplied
Reduce diagonally/vertically then multiply numerators and denominators
evaluate

27. Two expressions that are set equal to each other; a number sentence with an equal sign
estimate
equation
factor pair
product

28. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
equivalent
greatest common factor
greater than
Original whole +/- amount of change

29. Number divisible by 4
ratio
identity property
greater than
Last two digits divisible by 4

30. Not identical or equivalent to
product
expression
Multiply by 100%
not equal

31. A number that results from multiplying a factor by itself
square number
inverse property
expanded form using exponents
number line

32. In 4x4=16 - what is 4?
factor
prime factorization
Reduce diagonally/vertically then multiply numerators and denominators
root numbers

33. To drop a percent
factor pair
Add zeros to decimals until all decimals have same number of digits
Divide by 100%
odd number

34. New whole
inverse property
mixed number
place value
Original whole +/- amount of change

35. A value that does not change; any number
compute
less than
constants
prime number

36. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
least common multiple
denominator
odd
digit

37. 8x8=64 What is 64?
perfect square
Number w/o signs
root numbers
compensation

38. odd + even
LCM is LCD
Number of decimal places is total number of decimals places in factors multiplied
Multiply by 100%
odd

39. Properties of numbers btw -1 and 1

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40. Average value
improper fraction
Sum of values/number of values
quotient
Add zeros to decimals until all decimals have same number of digits

41. 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.
ratio
Greater spread in values
product
compensation

42. Mode
exponents
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Value occurring most frequently
odd

43. How much a number is worth
percent
(Amount of increase/original whole) x100%
sum
value

44. Number divisible by 6
expanded form using exponents
repeating decimals
irrational numbers
Divisible by 2 and 3

45. A number with more than two factors
composite number
square number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
commutative property

46. Able to be divided evenly (without a remainder)
divisible
evaluate
even
Value occurring most frequently

47. Number divisible by 2
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
even
Last digit divisible by 2
even number

48. odd + odd
percent
even number
even
Greater spread in values

49. Reducing fractions
Divide out largest common factor
root numbers
exponents
Total A/total B

50. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
percent
repeating decimals
Last digit divisible by 2
range