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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 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?
(Amount of decrease/original whole) x100%
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
denominator
difference

2. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
variables
equivalent
prime number
value

3. Relationship in which a number is smaller than another
Divide by 100%
common denominator
Divisible by 2 and 3
less than

4. To perform a calculation - E.g. 2+2=4
even
compute
Invert second term - then multiply
1 dividing by number

5. Average A per B
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Total A/total B
proportion
odd number

6. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
Value occurring most frequently
least common multiple
range
quotient

7. To find the answer for; solve
evaluate
product
Number of decimal places is total number of decimals places in factors multiplied
root numbers

8. A comparison of 2 numbers; one form is a fraction
order of operations
sum
ratio
Sum of values/number of values

9. Number divisible by 6
greatest
prime number
sum
Divisible by 2 and 3

10. 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?
odd
factor pair
numerator
even number

11. Be identical or equivalent to
sum
equal
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
not equal

12. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
Divide by 100%
order of operations
less than
mixed number

13. An equation showing 2 ratios are equal
proportion
irrational numbers
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Invert second term - then multiply

14. A number that is multiplied by another number to find a producr
factor
(Amount of decrease/original whole) x100%
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
simplify

15. Comparing decimal fractions
distributive property
less than
Add zeros to decimals until all decimals have same number of digits
even number

16. To change a percent to a decimal
Drop percent - move decimal point two place to left
sum
Invert second term - then multiply
repeating decimals

17. A shortcut for writing repeated multiplication
compatible numbers
exponents
compute
1 dividing by number

18. Natural Numbers - Whole Numbers - Integers - Rational Numbers
least
divisibility by 3 rule
Last digit divisible by 2
rational numbers

19. 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
irrational numbers
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
value
repeating decimals

20. Absolute value of number
not equal
prime number
digit
Number w/o signs

21. Average value
exponents
rational numbers
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Sum of values/number of values

22. Number divisible by 4
inverse property
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
ratio
Last two digits divisible by 4

23. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Add zeros to decimals until all decimals have same number of digits
Divisible by 2 and 3
Sum of values/number of values
place value

24. Dividing decimals
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
compute
value
equation

25. Properties of 0

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26. A number with one or more digits to the right of the decimal point - E.g. .33
LCM is LCD
fraction
decimal
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

27. The largest number in a group of numbers
Sum of digits divisible by 3
greatest
root numbers
not equal

28. 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
compatible numbers
least common multiple
inverse property
rational numbers

29. The answer to an addition problem
sum
value
equivalent
greatest common factor

30. Percent x whole
expanded form using exponents
greatest common factor
Part
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

31. Dividing fractions
Invert second term - then multiply
Divisible by 2 and 3
denominator
compatible numbers

32. Simplifying complex fractions: two methods
divisible
Sum of digits divisible by 3
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
numerator

33. Number divisible by 9
Number of decimal places is total number of decimals places in factors multiplied
decimal
Reduce diagonally/vertically then multiply numerators and denominators
Sum of digits divisible by 9

34. Properties of numbers btw -1 and 1

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35. A number that results from multiplying a factor by itself
factor pair
Greater spread in values
square number
terminating decimals

36. In 4x4=16 - what is 4?
compute
improper fraction
distributive property
root numbers

37. The answer to a multiplication problem
Invert second term - then multiply
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
constants
product

38. Percent decrease
(Amount of decrease/original whole) x100%
digit
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
not equal

39. 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)=
factor
repeating decimals
Greater spread in values
distributive property

40. The difference between the greatest and the least numbers in a set of data.
composite number
sum
range
odd number

41. A property of real numbers that states that the sum or product of a set of numbers is the same - regardless of how the numbers are grouped - (a+b)+c=a+(b+c) - e.g. (1+2)+3=1+(2+3)
associative property
whole number
factor pair
Sum of digits divisible by 3

42. Multiplying fractions
product
Value occurring most frequently
order of operations
Reduce diagonally/vertically then multiply numerators and denominators

43. New whole
greatest
Original whole +/- amount of change
commutative property
product

44. To find a number that is close to an exact answer - E.g. 23+24 is around 50
variables
estimate
least
numerator

45. Number divisible by 3
estimate
whole number
variables
Sum of digits divisible by 3

46. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
rational numbers
odd
terminating decimals
factor

47. A number made up of a whole number and a fraction
Last two digits divisible by 4
distributive property
mixed number
difference

48. Percent increase
(Amount of increase/original whole) x100%
LCM is LCD
Middle value
prime factorization

49. Reciprocal of number
1 dividing by number
Last digit divisible by 2
range
equivalent

50. Answer to a division problem
quotient
associative property
less than
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend