Calculate Total Animals: Solving 10 Cages × 3 Average Animals

To calculate the total number of animals in the zoo, we need to follow these steps:

• Step 1: Identify the given average number of animals per cage, which is $3$.
• Step 2: Identify the total number of cages, which is $10$.
• Step 3: Use the formula for total calculation: $\text{Total} = \text{Average} \times \text{Number of cages}$.

Now, applying the formula:
$\text{Total} = 3 \times 10 = 30$

Therefore, the total number of animals in all cages at the zoo is $30$.