1- Click a percentage on the Choose Percentage menu at the left to select the drill you wish to practice 2- Mentally choose one of the flash cards below and calculate the answer 3- Click the numbers on the card to view the correct answer
Choose Percentage
40% of 10
40% of 20
40% of 30
40% of 40
40% of 50
40% of 60
40% of 70
40% of 80
40% of 90
40% of 100
40% of 110
40% of 120