1. The problem asks to find the total of "One Less," "Number Shown," and "One More" based on the abacus diagrams. 2. From the top abacus (Number Shown): - Left section top row: 10 beads - Left section bottom row: 3 beads - Right section bottom row: 7 beads Total number shown = $10 + 3 + 7 = 20$ 3. "One Less" means subtracting 1 from the number shown: $$\text{One Less} = 20 - 1 = 19$$ 4. "One More" means adding 1 to the number shown: $$\text{One More} = 20 + 1 = 21$$ 5. Now, find the total of "One Less," "Number Shown," and "One More": $$19 + 20 + 21 = 60$$ 6. Therefore, the total is 60.