A farmer owns a field with an area of 0.04 km2. The farmer buys another field with an area of 45,600 m2. What is the total area of the fields he now owns in km2?

Answer 1

45600 m^2 * (1km/1000m)^2 = 0.0456 km^2
So now just add them up

Answer 2

0.0578

Answer 3

0.0856

Answer 4

Actually, the correct answer is:

0.04 km² + 0.0456 km² = 0.0856 km²

So the farmer now owns a total area of 0.0856 km².