Our cross-number sum puzzle worksheets offer an engaging way for children to practice their subtraction and addition skills. In some parts, pre-filled numbers are added to guide them towards a solution, while other sections of the puzzle allow them to choose their numbers, promoting creativity and independent thinking. These puzzles are a fun test of their reasoning ability, ensuring kids have an entertaining time finding the correct numbers. Teachers can also assign cross-number sum puzzles as homework or extra credit activities, encouraging students to practice their mathematical skills outside classroom sessions. They can also use the puzzles during quizzes and examinations to assess a student's problem-solving abilities and understanding of addition and subtraction.