Addition and Subtraction, Grade 4

In thisweb-quest, you will become addition and subtraction experts!  In class, wehave been talking about addition and subtraction of decimals.  We havealso been working on story problems dealing with money and a bit harderaddition and subtraction work lately.  

 Now Iwant to expand your minds and help you to figure out why this basic additionand subtraction facts work and I also want you to be able to use themthroughout your lives.  You will see that addition and subtraction arevery important and you will use it every day outside of the classroom.