Creating a game out of addition not only makes it more engaging for the students, it is also something that can be done either as a group or individually. A crossword is a common activity and can be used with digits instead of words. Have children answer the double-digit questions and write the corresponding answers in the numbered boxes, with the same numbers as the question, in a checkered crossword puzzle. Worksheets with the crossword can also be found online (see the resources section of this article).
Number lines are a visible means of aiding kids with their knowledge of numbers and provides a constant reference. Cut out number lines or purchase them from your local educational store. Have each child tape them to the top of their desk. As the children are placing them on their desk, have them count how many students are in the room and point to the number on the line. Using the line, teach them how to add utilizing the long sheet by having them add the amount of students with the amount of number lines that have been placed on desks in the room, including yours.
While numbers themselves are fun to work with, representing them with candy is a tasty incentive for children to learn about adding double digits correctly. The candy can illustrate each digit and allow the children to see how the two numbers are added together to make one larger number. Break the children up in to groups of three or four. Present each group of children with a simple double-digit equation. Have them count out the first number in penny candy and place the group to one side. Do the same with the second number. Have them count all the candy together. If they have the correct answer, divide the candy up into even amounts for the children as a prize.
Money is an everyday part of life, and often interests children down to the smallest penny. Combining learning about the value of money with double digits is a valuable lesson and one that illustrates the numbers well with coinage. Use worksheets to have children add double-digit amounts of money together, illustrated by drawn coins on the worksheet. These can be found online (see the resources section of this article), or created by the teacher.