1. Tap add. 2. Roll a dice, two times to build a 2 digit number. 3. The first roll is the ones place, the second roll is the tens place. 4. In the 1 more column write the number that is 1more. 5. In the 1 less column write the number that is 1less. 6. Keep building numbers and adding 10 more or subtracting 10 until the columns are full. 7. Press the green check 2 times.