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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. 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
inverse property
even number
square number
order of operations

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

3. To place a fraction in lowest terms
simplify
mixed number
place value
square number

4. Answer to a multiplication problem
product
less than
difference
denominator

5. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
equivalent
quotient
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
digit

6. Number divisible by 6
Divisible by 2 and 3
distributive property
compute
order of operations

7. A comparison of 2 numbers; one form is a fraction
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
ratio
composite number
inverse property

8. The answer to a multiplication problem
product
common denominator
greater than
numerator

9. Number divisible by 3
even
Sum of digits divisible by 3
range
rational numbers

10. To make a percent
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
range
Multiply by 100%
LCM is LCD

11. A fraction out of 100 - %
percent
simplify
identity property
equation

12. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
terminating decimals
order of operations
inverse property
Divisible by 2 and 3

13. A number with one or more digits to the right of the decimal point - E.g. .33
even number
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
(Amount of decrease/original whole) x100%
decimal

14. 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
exponents
Last digit 0 or 5
factor
identity property

15. To drop a percent
variables
Divide out largest common factor
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Divide by 100%

16. Comparing positive fractions
greater than
difference
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
not equal

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

18. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
Original whole +/- amount of change
place value
product

19. Able to be divided evenly (without a remainder)
prime number
Reduce diagonally/vertically then multiply numerators and denominators
divisible
Multiply by 100%

20. Percent decrease
greatest common factor
associative property
ratio
(Amount of decrease/original whole) x100%

21. A number made up of a whole number and a fraction
prime number
estimate
mixed number
compensation

22. How much a number is worth
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
equation
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
value

23. A line for representing and graphing numbers. Each point on the line corresponds to a number.
Total A/total B
number line
Last digit divisible by 2
Invert second term - then multiply

24. 1/5 + 1/4=4/20 +5/20 and 20 is the...
odd number
prime factorization
common denominator
prime number

25. Multiple-event probability
Value occurring most frequently
inverse property
compute
Probability for each event then multiply individual probabilities together

26. The expression of a number as a product of prime factors; use a factor tree!
Number w/o signs
equation
divisibility by 3 rule
prime factorization

27. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
1 dividing by number
terminating decimals
divisibility by 3 rule
Invert second term - then multiply

28. The difference between the greatest and the least numbers in a set of data.
improper fraction
associative property
range
Number of decimal places is total number of decimals places in factors multiplied

29. 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)
commutative property
inverse property
not equal
equation

30. To find the answer for; solve
evaluate
exponents
divisible
Divide by 100%

31. Number divisible by 5
Last digit 0 or 5
1 dividing by number
order of operations
odd number

32. To perform a calculation - E.g. 2+2=4
constants
compute
composite number
quotient

33. Comparing decimal fractions
constants
place value
expression
Add zeros to decimals until all decimals have same number of digits

34. 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.
Value occurring most frequently
Last digit divisible by 2
square number
compensation

35. A number with more than two factors
least common multiple
divisible
Sum of values/number of values
composite number

36. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Value occurring most frequently
even
estimate

37. The smallest number in a group of numbers
least
value
percent
simplify

38. Not identical or equivalent to
root numbers
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
value
not equal

39. A letter that represents a value that may change
compatible numbers
distributive property
variables
denominator

40. Percent x whole
least common multiple
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Part
mixed number

41. Absolute value of number
Number w/o signs
Divide out largest common factor
Sum of values/number of values
irrational numbers

42. 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?
numerator
repeating decimals
not equal
Number of decimal places is total number of decimals places in factors multiplied

43. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
composite number
Last two digits divisible by 4
exponents

44. A value that does not change; any number
expanded form using exponents
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
constants
proportion

45. Answer to a division problem
Greater spread in values
fraction
quotient
number line

46. Probability
value
Sum of digits divisible by 9
Number of desired outcomes/number of total possible outcomes
root numbers

47. The greatest whole number that is a factor of two or more nonzero whole numbers
range
simplify
greatest common factor
value

48. Properties of 0

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49. 8x8=64 What is 64?
fraction
perfect square
Divide out largest common factor
Multiply by 100%

50. The answer to an addition problem
sum
denominator
Part
Last digit divisible by 2