Second-grade math worksheet with addition and subtraction problems to solve a penguin-themed riddle.
A math worksheet for second grade students featuring 18 addition and subtraction problems with two-digit numbers, each problem labeled with a letter. The worksheet includes a riddle at the bottom: "What do penguins eat for lunch?" with a code to solve the riddle using the answers. The top of the page has a section for the student's name and directions. The page is decorated with illustrations of penguins and snowflakes.