When figuring out the volume of different shapes, watch out for these common mistakes:

1. Wrong Formula:

   • Make sure you're using the right formula for each shape. For example, the formula for a cylinder is ( V = \pi r^2 h ). But for a cone, it’s ( V = \frac{1}{3}\pi r^2 h ).

2. Forgetting About Units:

   • Always use the same units. If you're measuring in centimeters, the volume will be in cubic centimeters (cm³).

3. Making Calculation Mistakes:

   • Check your math carefully. Even small mistakes can change the volume a lot.

4. Confusing Dimensions:

   • Make sure the dimensions fit the shape correctly. Length, width, and height should be assigned correctly.

5. Adding Volumes:

   • If you’re adding the volumes of different shapes, first calculate each volume separately before adding them together.