Leigh Mercer’s Mathematical Limerick: The Poem That Equals 9²

Leigh Mercer’s Classic Mathematical Limerick

$$\frac{12 + 144 + 20 + 3\sqrt{4}}{7} + (5 \times 11) = 9^2 + 0$$

A dozen, a gross, and a score,
Plus three times the square root of four,
Divided by seven,
Plus five times eleven,
Is nine squared and not a bit more.

---

💡 One of the most famous mathematical limericks ever written by Leigh Mercer — a poem where numbers, rhythm, and wit blend perfectly.

Let’s decode it step by step:

• A dozen → 12

• A gross → 144

• A score → 20

• $3\sqrt{4} = 6$
  

So: $12 + 144 + 20 + 6 = 182$
Divide by 7 → $182 / 7 = 26$
Add $5 \times 11 = 55$
Result: $26 + 55 = 81 = 9^2$ 🎯

A true equation-poem, where mathematics meets poetry in perfect harmony!