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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. 8x8=64 What is 64?
Divide by 100%
1 dividing by number
perfect square
compensation

2. Number divisible by 3
value
LCM is LCD
divisibility by 3 rule
Sum of digits divisible by 3

3. Average value
improper fraction
Last digit divisible by 2
Sum of values/number of values
prime factorization

4. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
order of operations
less than
1 dividing by number

5. Number divisible by 5
Last digit divisible by 2
repeating decimals
LCM is LCD
Last digit 0 or 5

6. Answer to a division problem
irrational numbers
product
quotient
place value

7. 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.
compensation
least common multiple
root numbers
decimal

8. Able to be divided evenly (without a remainder)
commutative property
Middle value
whole number
divisible

9. Comparing decimal fractions
Add zeros to decimals until all decimals have same number of digits
Middle value
order of operations
sum

10. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
place value
simplify
divisibility by 3 rule
Number of decimal places is total number of decimals places in factors multiplied

11. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
prime number
inverse property
estimate
Drop percent - move decimal point two place to left

12. In 4x4=16 - what is 4?
repeating decimals
root numbers
numerator
improper fraction

13. Average A per B
expression
associative property
Drop percent - move decimal point two place to left
Total A/total B

14. Two expressions that are set equal to each other; a number sentence with an equal sign
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
compute
equation

15. 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)
greatest common factor
Divide out largest common factor
estimate
associative property

16. Be identical or equivalent to
divisibility by 3 rule
equivalent
equal
expanded form using exponents

17. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
LCM is LCD
digit
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
compatible numbers

18. Number divisible by 6
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Divisible by 2 and 3
constants
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

19. Percent increase
(Amount of increase/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
factor
greatest common factor

20. To find the answer for; solve
Reduce diagonally/vertically then multiply numerators and denominators
Invert second term - then multiply
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
evaluate

21. The greatest whole number that is a factor of two or more nonzero whole numbers
expanded form using exponents
greatest common factor
(Amount of decrease/original whole) x100%
repeating decimals

22. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
greatest common factor
fraction
even
greater than

23. 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
Original whole +/- amount of change
fraction
inverse property
equation

24. Percent decrease
Number of decimal places is total number of decimals places in factors multiplied
(Amount of decrease/original whole) x100%
Probability for each event then multiply individual probabilities together
Sum of values/number of values

25. Relationship in which a number is smaller than another
expanded form using exponents
equivalent
less than
irrational numbers

26. A set of operators - numbers - variables and grouping symbols; no equal sign
denominator
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
equivalent
expression

27. When a number is larger than the other number. Example 65 > 56
Sum of digits divisible by 3
whole number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
greater than

28. Comparing positive fractions
factor pair
(Amount of increase/original whole) x100%
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
order of operations

29. A comparison of 2 numbers; one form is a fraction
ratio
Greater spread in values
Reduce diagonally/vertically then multiply numerators and denominators
factor

30. To perform a calculation - E.g. 2+2=4
improper fraction
denominator
LCM is LCD
compute

31. Absolute value of number
Last digit 0 or 5
irrational numbers
Number w/o signs
Sum of digits divisible by 9

32. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
quotient
expanded form using exponents
terminating decimals
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

33. Standard deviation: greater if...
compute
Greater spread in values
Divide out largest common factor
composite number

34. The answer to a subtraction problem
equation
expanded form using exponents
Original whole +/- amount of change
difference

35. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
Number w/o signs
numerator
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

36. Number divisible by 4
Last two digits divisible by 4
least
perfect square
greatest common factor

37. A letter that represents a value that may change
factor pair
variables
common denominator
least common multiple

38. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
Drop percent - move decimal point two place to left
denominator
Invert second term - then multiply
whole number

39. Properties of numbers btw -1 and 1

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40. Properties of 1 and -1

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41. A number that is multiplied by another number to find a producr
Divisible by 2 and 3
factor
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Sum of values/number of values

42. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
prime factorization
distributive property
least common multiple

43. To find a number that is close to an exact answer - E.g. 23+24 is around 50
estimate
compute
Sum of values/number of values
Probability for each event then multiply individual probabilities together

44. Properties of 0

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45. Median
compatible numbers
Middle value
greater than
commutative property

46. To make a percent
factor
mixed number
proportion
Multiply by 100%

47. 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
Greater spread in values
Value occurring most frequently
Sum of digits divisible by 3

48. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
odd number
square number
inverse property
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

49. An equation showing 2 ratios are equal
proportion
rational numbers
not equal
digit

50. Adding/subtracting decimals
factor
Line up decimal points
Divide out largest common factor
Middle value