MATH Flashcards

1
Q

Celsius to farenheit:

A

C x 9/5 +32= F

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2
Q

Farenheit to celsius:

A

(F - 32) x 5/9= C

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3
Q
King
Henry
Died
by
Drinking
Chocolate
Milk
A
Kilo (1,000)
Hecto (100)
Deca (10)
-- UNIT --
Deci (0.10)
Centi (0.01)
Milli (0.001)
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4
Q
Roman numerals
\_\_\_\_\_\_\_\_\_\_\_\_\_\_
I
V
X
A

1
5
10

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5
Q

2.54 centimeters=

A

1 inch

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6
Q

1 mile= ___ yards

A

1,760 yards

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7
Q

1 mile= ___ feet

A

5,280 feet

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8
Q

1 yard=

A

3 feet

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9
Q

1 gallon= __ quarts

A

4 quarts

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10
Q

1 gallon= __ ounces

A

128 ounces

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11
Q

1 quart=

A

2 pints

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12
Q

1 pint=

A

2 cups

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13
Q

1 cup=

A

8 ounces

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14
Q

1 ounce=

A

30 millimeters

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15
Q

1 ton=

A

2,000 pounds

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16
Q

1 pound=

A

16 ounces

17
Q

2.2 pounds=

A

1 kilogram

18
Q

percent formula

18 IS 50% of what number?
set up problem:

A

18/X=50/100

IS= number is on top

19
Q

percent formula

68% OF 45
set up problem:

A

68/100=x/45

OF= number is on bottom

20
Q

When going from decimal -> percent:

A

Move the decimal point over to the RIGHT 2 spaces

21
Q

When going from percent -> decimal:

A

Move the decimal point over to the LEFT 2 spaces

22
Q

When going from fraction -> percent:

A

Divide fraction, convert decimal to a percent by moving the decimal point over to the RIGHT 2 spaces

23
Q

When going from decimal -> ratio:

A
  • Convert decimal to a fraction (0.25= 25/100) then reduce

- Express the reduced fraction as a ratio

24
Q

_______ of fractions do not need common denominators:

A

Multiplication and division

25
Q

_______ of fractions must have a common denominators:

A

Addition and subtraction

26
Q

Division of decimals rule:

A

What you do to one side, you must do to the other side

27
Q

Multiplication of decimals rule:

A
  • Count how many decimal places each number you are multiplying has, the move the decimal place over that many times to the left in the answer
  • For example: 1.75 X 2.5= 4.375 (decimal spot is moved to the left 3 spaces)