Here is a bundle of six Goofus worksheets including:
Reading, Writing, and Rounding Decimals
Adding and Subtracting Decimals
Each comes with a cover page detailing the common core standard and a student worksheet with 3 problems. Students must examine Goofus' work and decide what went wrong. After identifying Goofus' mistake, students must then provide him with the correct solution. These are all common core aligned for fifth-grade, but are great homework, warm-up, or morning work for any student working with decimals.
I have more uploading soon, so follow me if you like this activity. I hope that your kiddos enjoy them as much as mine do.