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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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1. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
expanded form using exponents
equivalent
compatible numbers
associative property

2. A shortcut for writing repeated multiplication
Invert second term - then multiply
equivalent
exponents
mixed number

3. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
irrational numbers
Sum of values/number of values
even

4. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
product
place value
divisible
(Amount of increase/original whole) x100%

5. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
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
divisibility by 3 rule
LCM is LCD
ratio

6. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
least common multiple
perfect square
Last digit divisible by 2
prime number

7. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
constants
equivalent
Drop percent - move decimal point two place to left
Original whole +/- amount of change

8. Number divisible by 3
Sum of digits divisible by 3
Line up decimal points
Last two digits divisible by 4
Part

9. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
simplify
difference
improper fraction
terminating decimals

10. Two factors together that are multiplied to equal a larger number.
factor pair
Divisible by 2 and 3
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
percent

11. The largest number in a group of numbers
odd
greatest
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
square number

12. A number made up of a whole number and a fraction
composite number
mixed number
Reduce diagonally/vertically then multiply numerators and denominators
Sum of digits divisible by 3

13. Percent increase
common denominator
variables
(Amount of increase/original whole) x100%
fraction

14. In 4x4=16 - what is 4?
root numbers
associative property
Number of decimal places is total number of decimals places in factors multiplied
improper fraction

15. odd + odd
even
associative property
sum
equal

16. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
improper fraction
terminating decimals
order of operations
difference

17. Multiple-event probability
even
Original whole +/- amount of change
LCM is LCD
Probability for each event then multiply individual probabilities together

18. The smallest number in a group of numbers
Middle value
expression
least
compensation

19. Comparing positive fractions
compute
Part
proportion
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

20. A number with more than two factors
place value
simplify
composite number
exponents

21. The answer to a multiplication problem
product
identity property
even number
proportion

22. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
range
compatible numbers
equation
Last digit divisible by 2

23. A comparison of 2 numbers; one form is a fraction
ratio
Drop percent - move decimal point two place to left
(Amount of decrease/original whole) x100%
Sum of digits divisible by 3

24. 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?
Line up decimal points
identity property
equation
numerator

25. Comparing decimal fractions
compensation
composite number
Add zeros to decimals until all decimals have same number of digits
root numbers

26. The difference between the greatest and the least numbers in a set of data.
even number
range
Drop percent - move decimal point two place to left
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value

27. Natural Numbers - Whole Numbers - Integers - Rational Numbers
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
rational numbers
order of operations
perfect square

28. A value that does not change; any number
numerator
constants
value
factor pair

29. Simplifying complex fractions: two methods
whole number
greater than
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
numerator

30. Probability
Number w/o signs
whole number
Number of desired outcomes/number of total possible outcomes
expression

31. Properties of numbers btw -1 and 1

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32. Reducing fractions
Divide out largest common factor
least common multiple
Divisible by 2 and 3
(Amount of increase/original whole) x100%

33. Number divisible by 2
Sum of digits divisible by 3
Last digit divisible by 2
perfect square
Part

34. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
place value
even number
Divide by 100%
quotient

35. Number divisible by 4
Last two digits divisible by 4
factor
root numbers
repeating decimals

36. The expression of a number as a product of prime factors; use a factor tree!
compute
Sum of digits divisible by 9
prime factorization
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

37. 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?
even
common denominator
Probability for each event then multiply individual probabilities together
denominator

38. The answer to an addition problem
Part
factor pair
Invert second term - then multiply
sum

39. An equation showing 2 ratios are equal
greater than
proportion
exponents
estimate

40. A number that results from multiplying a factor by itself
root numbers
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
square number
Greater spread in values

41. To find the answer for; solve
(Amount of decrease/original whole) x100%
evaluate
whole number
order of operations

42. To place a fraction in lowest terms
perfect square
Middle value
odd
simplify

43. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
number line
1 dividing by number
prime number
exponents

44. 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
factor
inverse property
Original whole +/- amount of change

45. Adding/subtracting decimals
prime number
variables
percent
Line up decimal points

46. 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
Number w/o signs
irrational numbers
expression
repeating decimals

47. Median
Number of decimal places is total number of decimals places in factors multiplied
compatible numbers
common denominator
Middle value

48. Average value
Probability for each event then multiply individual probabilities together
decimal
divisible
Sum of values/number of values

49. To find a number that is close to an exact answer - E.g. 23+24 is around 50
denominator
Line up decimal points
estimate
equation

50. A fraction out of 100 - %
divisible
irrational numbers
percent
greater than

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Number Sense Vocab

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