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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. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
Add zeros to decimals until all decimals have same number of digits
Sum of values/number of values
Line up decimal points
divisibility by 3 rule

2. Comparing decimal fractions
exponents
improper fraction
Add zeros to decimals until all decimals have same number of digits
even

3. Number divisible by 9
Sum of digits divisible by 9
estimate
range
Multiply by 100%

4. Reciprocal of number
even number
1 dividing by number
distributive property
Drop percent - move decimal point two place to left

5. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
identity property
order of operations
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Part

6. 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?
factor
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
ratio
numerator

7. Standard deviation: greater if...
Multiply by 100%
Greater spread in values
variables
number line

8. Answer to a division problem
quotient
digit
range
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

9. 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
1 dividing by number
factor
irrational numbers
decimal

10. Average A per B
product
Total A/total B
Original whole +/- amount of change
equation

11. A number that is multiplied by another number to find a producr
1 dividing by number
Original whole +/- amount of change
factor
(Amount of decrease/original whole) x100%

12. odd + odd
Divide out largest common factor
place value
composite number
even

13. 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
product
Value occurring most frequently
equivalent

14. To perform a calculation - E.g. 2+2=4
compute
irrational numbers
Number of decimal places is total number of decimals places in factors multiplied
greater than

15. A shortcut for writing repeated multiplication
numerator
Probability for each event then multiply individual probabilities together
value
exponents

16. An equation showing 2 ratios are equal
variables
compatible numbers
factor
proportion

17. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
common denominator
even number
equation
fraction

18. Number divisible by 5
Last digit 0 or 5
Reduce diagonally/vertically then multiply numerators and denominators
expanded form using exponents
factor

19. In 4x4=16 - what is 4?
root numbers
associative property
equivalent
(Amount of decrease/original whole) x100%

20. 8x8=64 What is 64?
less than
perfect square
order of operations
greatest

21. Be identical or equivalent to
equal
factor
Invert second term - then multiply
irrational numbers

22. To place a fraction in lowest terms
compatible numbers
simplify
quotient
exponents

23. To find the answer for; solve
digit
(Amount of decrease/original whole) x100%
Value occurring most frequently
evaluate

24. Average value
1 dividing by number
Original whole +/- amount of change
Sum of values/number of values
Add zeros to decimals until all decimals have same number of digits

25. Number divisible by 4
Last two digits divisible by 4
Total A/total B
Value occurring most frequently
distributive property

26. 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.
(Amount of increase/original whole) x100%
equivalent
compensation
Add zeros to decimals until all decimals have same number of digits

27. Percent x whole
Part
improper fraction
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
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

28. Percent increase
number line
1 dividing by number
(Amount of increase/original whole) x100%
decimal

29. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
ratio
odd
least common multiple

30. 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)=
difference
Reduce diagonally/vertically then multiply numerators and denominators
LCM is LCD
distributive property

31. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
repeating decimals
mixed number
digit
common denominator

32. Natural Numbers - Whole Numbers - Integers - Rational Numbers
expression
percent
equal
rational numbers

33. The greatest whole number that is a factor of two or more nonzero whole numbers
least common multiple
percent
greatest common factor
factor pair

34. Number divisible by 6
greatest
Divisible by 2 and 3
equation
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

35. Number divisible by 3
square number
Sum of digits divisible by 3
prime number
Total A/total B

36. Adding/subtracting decimals
prime factorization
mixed number
Line up decimal points
(Amount of increase/original whole) x100%

37. New whole
Original whole +/- amount of change
common denominator
expanded form using exponents
odd number

38. To find a number that is close to an exact answer - E.g. 23+24 is around 50
odd
digit
terminating decimals
estimate

39. The expression of a number as a product of prime factors; use a factor tree!
prime factorization
sum
Number w/o signs
inverse property

40. Properties of 0

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41. When a number is larger than the other number. Example 65 > 56
Greater spread in values
range
greater than
product

42. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
Total A/total B
greater than
equivalent
number line

43. Able to be divided evenly (without a remainder)
not equal
decimal
Last two digits divisible by 4
divisible

44. To make a percent
compensation
square number
Multiply by 100%
irrational numbers

45. A letter that represents a value that may change
identity property
variables
Middle value
value

46. A fraction whose numerator is greater than its denominator
improper fraction
order of operations
Sum of values/number of values
decimal

47. 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?
numerator
sum
denominator
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

48. The answer to an addition problem
perfect square
compute
prime factorization
sum

49. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
mixed number
place value
Divide by 100%
ratio

50. Dividing fractions
Invert second term - then multiply
not equal
numerator
root numbers