Slide 3:
Add 2 numbers with the sum of 2 = 2 + 0 2 = 2 0 + 2 = 2 1 + 1 2 1 1 0 2 0
Slide 4:
Add 2 numbers with the sum of 3 3 0 3 + 0 = 3 2 + 1 = 3 1 + 2 = 3 0 + 3 = 3 1 2 2 1 0 3
Slide 5:
Add 2 numbers with the sum of 8 8 + 0 = 8 7 + 1 = 8 6 + 2 = 8 5 + 3 = 8 4 + 4 = 8 0 + 8= 8 1 + 7 = 8 2 + 6 = 8 3 + 5 = 8
Slide 6:
Add 2 numbers with the sum of 9 9 + 0 = 9 8 + 1 = 9 7 + 2 = 9 6 + 3 = 9 5 + 4 = 9 0 + 9 = 9 1 + 8 = 9 2 + 7 = 9 3 + 6 = 9 4 + 5 = 9