Work 1 3360 : 672

Step-by-step solution:

To calculate 3360 : 672, we can estimate. 672 is close to 700, and 3360 is close to 3500. 3500 / 700 = 5.

Let's check if 672 * 5 = 3360.

672 * 5 = (600 * 5) + (70 * 5) + (2 * 5) = 3000 + 350 + 10 = 3360.

So, 3360 : 672 = 5.

Answer: 5