1. The problem is to verify if $25 + 4 = 29$. 2. We use the basic addition rule: adding two numbers means combining their values. 3. Calculate $25 + 4$: $$25 + 4 = 29$$ 4. Since the sum is $29$, the statement $25 + 4 = 29$ is correct. 5. Therefore, the answer is $29$.