Operations on Integers – Subtraction

We have discussed about addition of integers and its representation as chips.  Recall in our previous discussion that a single positive chip added up to a single negative chip is equal to 0. The addition below as we have discussed will give us a notion of how to add signed numbers.

Now let us discuss on how use signed chips can be used as a strategy to subtract integers. Let us represent the following using chips. » Read more

Math Teachers at Play #35 (via Let’s Play Math!)

The Math Teachers at Play Carnival #35 is now online. It has excellent entries. You may want to check it out.

Math Teachers at Play #35 Welcome to the Math Teachers At Play blog carnival — which is not just for math teachers. Do you enjoy math? I hope so! If not, browsing these links just may change your mind. Most of these posts were submitted by the bloggers themselves; others are drawn from my overflowing Google Reader. From preschool to high school, there are plenty of interesting t … Read More

via Let's Play Math!

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