1. The problem is to calculate the product of 12 and 10. 2. The formula for multiplication is $a \times b = c$, where $a$ and $b$ are numbers and $c$ is their product. 3. Multiply 12 by 10: $$12 \times 10 = 120$$ 4. This means if you have 12 groups of 10 items each, you have a total of 120 items. 5. Therefore, the final answer is 120.