This is a partner activity that I created once I realized students were stuggling with decimals. I printed the worksheets on different colored paper so it was easy to see who had an "A" worksheet and who had a "B" worksheet. Each student works out the problems on their own, then pairs up with someone with a different colored worksheet. The students should get the same answer for all of their problems (I set up the worksheets so that if student A added decimals then student B subtracted decimals - both producing the same answer)
There are 2 word problems on each worksheet. This is adding, subtracting, and multiplying only --- no division!