Find the square roots of 121 and 169 by the method of repeated subtraction.

Explanation

To find the square roots of 121 and 169 using the method of repeated subtraction, we will subtract the first ten odd numbers from the given numbers until we reach zero. The number of subtractions we perform will give us the square root.

### Step-by-Step Solution:

**Finding the Square Root of 121:**

1. **Start with 121.**
- Current number: 121
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