If we multiply and then divide the number by the same thing,
we won't change its value.
Take the number: 58,000,000,000
Divide it by 10¹⁰ : 5.8
Multiply it by 10¹⁰ : 5.8 x 10¹⁰
They want a single digit, so we'll round the 5.8
to the nearest whole number:
6 x 10¹⁰ .
Legend:
300 square feet = 1 gallon
Samples:
roof length = 63ft long
roof width = 47ft wide
Formula for area of the roof:
Area of the roof = (Length of the roof) x (Width of the roof)
A= 63 ft X 47 ft
A= 2961 feet
1 gallon = 300 ft
? gallon = 2961 ft
2961 ft / 300 ft per 1 gallon = 9.87 (cancelling out feet it leaves you gallons)
Answer is 9.87 gallons
