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Number Sense Vocab

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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
even
quotient
commutative property
proportion

2. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
terminating decimals
improper fraction
Number w/o signs
fraction

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

4. A comparison of 2 numbers; one form is a fraction
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
digit
ratio
prime factorization

5. A number that results from multiplying a factor by itself
Divide out largest common factor
square number
order of operations
commutative property

6. 1/5 + 1/4=4/20 +5/20 and 20 is the...
irrational numbers
equation
value
common denominator

7. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
numerator
commutative property
compute
digit

8. A line for representing and graphing numbers. Each point on the line corresponds to a number.
number line
Total A/total B
not equal
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately

9. To find the answer for; solve
evaluate
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
factor pair
Divide by 100%

10. Mode
Add zeros to decimals until all decimals have same number of digits
number line
Value occurring most frequently
repeating decimals

11. A fraction whose numerator is greater than its denominator
difference
terminating decimals
improper fraction
divisibility by 3 rule

12. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
compatible numbers
repeating decimals
product
number line

13. Dividing decimals
rational numbers
even number
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
product

14. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
order of operations
expanded form using exponents
range
composite number

15. To make a percent
equivalent
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
greater than
Multiply by 100%

16. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
variables
greatest
quotient
whole number

17. 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)
whole number
fraction
commutative property
simplify

18. Reciprocal of number
fraction
mixed number
compute
1 dividing by number

19. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
Middle value
numerator
odd number
sum

20. Number divisible by 6
Sum of values/number of values
place value
Divisible by 2 and 3
Divide out largest common factor

21. The answer to a multiplication problem
exponents
perfect square
product
Reduce diagonally/vertically then multiply numerators and denominators

22. A number that is multiplied by another number to find a producr
variables
not equal
factor
irrational numbers

23. Median
Last two digits divisible by 4
prime number
Middle value
divisible

24. Relationship in which a number is smaller than another
square number
range
place value
less than

25. A number with more than two factors
rational numbers
composite number
greatest common factor
value

26. The smallest number in a group of numbers
Last two digits divisible by 4
Divide by 100%
simplify
least

27. New whole
order of operations
place value
Original whole +/- amount of change
prime factorization

28. Properties of 0

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29. The greatest whole number that is a factor of two or more nonzero whole numbers
irrational numbers
denominator
Drop percent - move decimal point two place to left
greatest common factor

30. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
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
equivalent
proportion
Line up decimal points

31. odd + even
odd
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
sum
digit

32. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
Probability for each event then multiply individual probabilities together
variables
least common multiple
equivalent

33. Answer to a multiplication problem
estimate
decimal
product
Multiply by 100%

34. The expression of a number as a product of prime factors; use a factor tree!
(Amount of decrease/original whole) x100%
less than
prime factorization
proportion

35. Average value
decimal
Sum of values/number of values
commutative property
Last two digits divisible by 4

36. Absolute value of number
Last digit 0 or 5
Number of desired outcomes/number of total possible outcomes
Number w/o signs
Divide out largest common factor

37. 8x8=64 What is 64?
Sum of digits divisible by 9
fraction
Sum of digits divisible by 3
perfect square

38. A number made up of a whole number and a fraction
mixed number
Multiply by 100%
Sum of digits divisible by 9
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

39. A set of operators - numbers - variables and grouping symbols; no equal sign
Number w/o signs
expression
divisible
common denominator

40. Dividing fractions
Last digit 0 or 5
Number w/o signs
Greater spread in values
Invert second term - then multiply

41. A value that does not change; any number
constants
Invert second term - then multiply
Multiply by 100%
product

42. The answer to a subtraction problem
Divisible by 2 and 3
Last two digits divisible by 4
quotient
difference

43. Properties of 1 and -1

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44. Number divisible by 5
Drop percent - move decimal point two place to left
even number
Last digit 0 or 5
root numbers

45. Multiplying decimals
prime number
Number of decimal places is total number of decimals places in factors multiplied
factor
even number

46. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
Sum of digits divisible by 3
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
quotient
order of operations

47. Answer to a division problem
Multiply by 100%
Middle value
quotient
greater than

48. 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
less than
Part
compatible numbers

49. To place a fraction in lowest terms
rational numbers
equal
simplify
factor pair

50. Properties of numbers btw -1 and 1

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Number Sense Vocab

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