A farmer needs to spread fertiliser over a paddock measuring 40m by 8m. the instructions on the fertiliser bag say to use 80grams per square meter. How many kilograms of fertiliser will be needed?
HELP!
40 * 8 = 320 sq. m
80 * 320 = 25,600 grams
1 kg = 1000 g
25,600 g = _____ kg