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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. odd + odd
proportion
even
Number w/o signs
improper fraction

2. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
Part
equation
Divide by 100%
expanded form using exponents

3. Number divisible by 3
Divide by 100%
Sum of digits divisible by 3
greatest
expression

4. A number that results from multiplying a factor by itself
square number
composite number
prime factorization
Invert second term - then multiply

5. The smallest number in a group of numbers
odd
Number w/o signs
constants
least

6. Median
mixed number
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
distributive property
Middle value

7. A number with one or more digits to the right of the decimal point - E.g. .33
prime number
decimal
LCM is LCD
(Amount of increase/original whole) x100%

8. Multiple-event probability
odd number
Probability for each event then multiply individual probabilities together
factor
even number

9. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Line up decimal points
terminating decimals
less than
common denominator

10. Two factors together that are multiplied to equal a larger number.
factor pair
Number of decimal places is total number of decimals places in factors multiplied
ratio
divisibility by 3 rule

11. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
common denominator
Sum of values/number of values
Total A/total B

12. To make a percent
Value occurring most frequently
denominator
Multiply by 100%
exponents

13. 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
Last two digits divisible by 4
least
fraction

14. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
product
prime number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Probability for each event then multiply individual probabilities together

15. Absolute value of number
Number w/o signs
divisibility by 3 rule
Divide out largest common factor
compensation

16. Reciprocal of number
improper fraction
1 dividing by number
proportion
less than

17. New whole
prime number
Original whole +/- amount of change
composite number
exponents

18. Not identical or equivalent to
sum
not equal
equivalent
Part

19. A shortcut for writing repeated multiplication
Greater spread in values
composite number
exponents
Last two digits divisible by 4

20. Number divisible by 4
composite number
Last two digits divisible by 4
Middle value
fraction

21. To find the answer for; solve
mixed number
evaluate
number line
Greater spread in values

22. Dividing fractions
1 dividing by number
Drop percent - move decimal point two place to left
numerator
Invert second term - then multiply

23. An equation showing 2 ratios are equal
number line
Reduce diagonally/vertically then multiply numerators and denominators
proportion
variables

24. Be identical or equivalent to
Divide out largest common factor
equal
Last digit 0 or 5
even number

25. Properties of numbers btw -1 and 1

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26. 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
1 dividing by number
compensation
least common multiple
identity property

27. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
place value
greater than
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

28. The difference between the greatest and the least numbers in a set of data.
identity property
factor
Reduce diagonally/vertically then multiply numerators and denominators
range

29. Two expressions that are set equal to each other; a number sentence with an equal sign
greatest common factor
place value
equation
improper fraction

30. A number that is multiplied by another number to find a producr
difference
equal
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
factor

31. The answer to an addition problem
sum
ratio
greatest common factor
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

32. Adding/subtracting fractions
associative property
prime number
composite number
LCM is LCD

33. To perform a calculation - E.g. 2+2=4
Middle value
compute
decimal
Sum of digits divisible by 3

34. Adding/subtracting decimals
1 dividing by number
Line up decimal points
odd number
distributive property

35. 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?
denominator
percent
range
odd

36. 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)=
equal
even
distributive property
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined

37. Reducing fractions
Probability for each event then multiply individual probabilities together
common denominator
Divide out largest common factor
least common multiple

38. The expression of a number as a product of prime factors; use a factor tree!
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
prime factorization

39. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
product
Probability for each event then multiply individual probabilities together
compute
even number

40. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
difference
even number
range

41. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
Number of decimal places is total number of decimals places in factors multiplied
divisible
variables
digit

42. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
product
order of operations
(Amount of decrease/original whole) x100%
equation

43. 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.
identity property
factor pair
compensation
even number

44. Standard deviation: greater if...
LCM is LCD
equal
Greater spread in values
improper fraction

45. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
number line
even
mixed number
compatible numbers

46. 8x8=64 What is 64?
quotient
perfect square
Total A/total B
Divide by 100%

47. Multiplying fractions
composite number
commutative property
compatible numbers
Reduce diagonally/vertically then multiply numerators and denominators

48. A value that does not change; any number
Add zeros to decimals until all decimals have same number of digits
Number of decimal places is total number of decimals places in factors multiplied
composite number
constants

49. The greatest whole number that is a factor of two or more nonzero whole numbers
product
greatest common factor
composite number
distributive property

50. To drop a percent
exponents
Divide by 100%
product
composite number