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This children's workbook teaches addition through number sentences and pictures of pumpkins. Students are asked to write the numerical answer and use pumpkin pictures to represent addition problems of varying levels, such as 2 + 3 = 5, 1 + 3 = 4, and progressively more difficult problems like 12 + 8 = 20 and 7 + 13 = 20, culminating in exercises like 20 + 0 = 20 to reinforce that adding zero does not change the original number.