Big Hero 6 isn’t a story about just one hero. Instead, it’s a story that’s built on many missing pieces coming together to save the world. Hiro is a young boy whose newfound dream is to join his older brother, Tadashi, in the San Fransokyo Institute of Technology. In order to do so, he needs to invent an enrolment project for the school science fair that will impress Professor Callaghan.

Hiro creates a microbot the size of a jellybean. Though small and unassuming, a microbotâ€™s power comes from the teamwork of many microbots working together as one unit. Hiro controls the microbots with a neural transmitter, and creates a world of endless possibilities. Hiro’s creation is widely applauded, and he gets accepted into the university.

However, tragedy strikes, and Hiro loses his brother when a fire engulfs the school fair, causing a catastrophic explosion. Hiro is broken, and he feels that a part of him is gone forever. In his sadness, Hiro inadvertently activates Baymax, an inflatable healthcare robot that Tadashi invented.

With the help of Baymax, Hiro embarks on an adventure to fix the broken parts of himself. His journey earns him new friends, and every single one of them work together to save the world, just like his brother Tadashi had always set out to do. In the end, Hiro learns that though he may have lost a part of himself with the death of his brother, his friends and family can help put the missing pieces together and make his story whole again.

Just like Big Hero 6, it takes many small parts to create the bigger picture in mathematics. Missing pieces are just one part of the equation that needs to be understood, and conquered. For instance, how would you would you find the missing part in the following diagram?

In order to solve a problem, we always start with the things that we know, and the facts that we have. We know the total is 10, and one part is 5. So in order to solve the missing part, we have to subtract the part that we already have from the total. Therefore:

**10 – 5 = 5**

So the answer to the diagram is as follows:

Let’s try another few! See if you can figure out the missing parts to these:

If you got 8 for the first equation, and 13 for the second, you’re well on your way towards making a big mathematical difference! Don’t forget to practice patience and perseverance; it takes many small parts to create one big result!