Dear Number Crunchers,

Our number system is an amazing invention. Using only ten symbols, we can make numbers that go on for infinity. Because of our number system, you’re probably faster at multiplying multi-digit numbers than some of the ancient world’s greatest mathematicians. However, speed isn’t the most important thing when doing algorithms. A computer can always calculate faster than us. Our task is to use the algorithms to learn something essential about our number system (and systems in general).

Today, we will continue to practice addition algorithms. Remember, always estimate before you calculate, so you know if your sum is reasonable, and while you’re adding, think about the value of each digit you’re adding and make sure your places are always lined up.

Happy summing,

Mr. Heimbuck