Because addition is one of the most essential computer skills in specific and mathematical abilities in general, even PreK students are taught to add after they have learned the number and can count fluently. However, the content for these ages should be designed in a unique style so that the students are not bored or even afraid.Particularly in this collection, students will be instructed to count items to answer addition problems. The questions' format emphasizes the idea of addition by illustrating the equivalence of adding objects and numbers directly. Because these worksheets are made for preK students, so that the value of calculation will not exceed ten.