When teaching skills such as addition and subtraction, many websites provide free resources to help students practice their math skills. Education.com is a website I use when looking for homework and classwork.
One of the best features about education.com is that you can build your own custom worksheet. This is a great feature for teachers who want to modify the number of problems or type of problems they are giving their students.
If you do not want a custom built sheet, Education.com provides many choices for teachers to choose from. Challenge your mathematicians with this FREE fun school-themed subtraction worksheet below.
In our math centers, we have been focusing on adding and subtracting two and three digit numbers. To help my kids remember the steps, they reference these posters at our centers.
Since students need different levels of support, counters, number lines, and pictures are used to help students understand the concept. In particular, I found that using a 0-20 number line was very helpful for my students who were having a hard time. The other number lines featured can be useful if you teach students to estimate their answer.