⇐ Back Subtraction Quiz Time Up! You ran out of time! Try again to see if you get as many corrrect as you can in the time limit! Try Again Home Pen 1 2 3 4 5 6 7 8 9 10 Choose your level: 2 digits 3 digits 4 digits Choose your time limit: 5 minutes 10 minutes 15 minutes No timer 1Px Clear Eraser Pen Please enter an integer! Start Enroll now to get trophies