Subtraction

Today we started learning about two digit subtraction.  We will be practicing this concept, so if your child doesn't understand it now, don't worry.  We will work on it again, and again, and again.

One thing students need to know is when you need to make a trade or borrow.  Here is a little poem we used to help know when we need to trade.

Then, it was lots and lots of practice.  We drew out the base ten blocks of the top number in pencil, then showed our trade in blue colored pencil.  Next, we made our equation match our picture.  Last, we subtracted with our new equation.

If this is not solid yet for your student please know we will work on it.  If your student has another strategy, please know they can use that as long as they can show understanding.