What's more real life application than shopping?!? To practice adding and subtracting decimals my students went shopping and created receipts! They then had to pay extra money and find how much change they got back. I took screen shots of different items that I knew they would enjoy. The iCloud has the capabilities to photo stream to ALL 30 iPads. The students looked through the items and selected four items. They found the total, listed how much they paid and found how much change they got back. After students finished their own receipts, they checked their neighbors.
I also had a group of students who needed to practice estimation. This group did the same thing but before they found the total they rounded the prices. This gave them their estimation practice. After they completed their receipts and I checked them, they wrote estimation story problems to go with those problems.
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