(460-400)*4
480/(30-28)
720/(5-2)
260-(120-100)
(460-400)*4=60*4=240
480:(30-28)=480:2=240
720:(5-2)=720:3=240
260-(120-100)=260-20=240
(460-400)*4
480/(30-28)
720/(5-2)
260-(120-100)
(460-400)*4=60*4=240
480:(30-28)=480:2=240
720:(5-2)=720:3=240
260-(120-100)=260-20=240