It's useful to be able count forwards and backwards in 5s. It's much quicker than counting in 1s. There is a pattern when counting in 5s that can be easily seen on a 100 square or number line. Look at ...

Note that a Pet's provided boosts/passives are only active when they are equipped. They are of no value if they just remain in the inventory. To equip a Pet, click the "Pets" button on the left side ...