I would do it as follows:305 * 144 = (300*144) + (5*144) = 100*(3*144) + 10*(144/2) [because 5 = 10/2]= 100*(432) + 10*72 = 43200 + 720 = 43920.
305 x 144 = 43920
Exactly 144 times
1 times 144=144 2 times 72=144 3 times 48=144 4 times 36=144 6 times 24=144 8 times 18=144 9 times 16=144 12 times 12=144
144 / 2 = 72
1x144= 144 2x72=144 3x48=144 4x36=144 6x24=144 8x18=144 9x16=144
we would do 10% which would be 36 then times that by 4 which would be 144 work out one percent which would be 3.6 and times that by 2 which would be 7.2 So add 7.2 and 144 which would be 151.2
144 x 144 = 20736
144 x 144 = 20,736
305 * 9.09 = 2,772.45
144 is 2 times 2 times 2 times 2 times 3 times 3.
305 x 5 = 1525
12x12=144
12 times 5 is 60