This math worksheet contains addition problems for students to practice their skills. It includes single digit addition questions where students must fill in the sum, such as 4 + 5, 2 + 2, 3 + 1, and 3 + 3. It also contains problems combining a single digit with a multiple of ten, like 1 + 7 and 5 + 2. Finally, it asks students to solve problems adding two even single digits together, like 4 + 4, and adding a single digit to a multiple of five, as in 6 + 1.