Children learn by hearing, seeing and doing. Math teachers can start the lesson by reading out loud a double digit-subtraction problem as they write it across the blackboard on a straight line. To solve the problem, they can stack the numbers on top of each other in order to subtract the bottom from the top. Teachers can draw a line between the one's column and the ten's column to show the difference in the sections. When subtracting, students can go from right to left (starting from the one's column to the ten's column). Students can go the board and write the final answer to complete the equation.
Interactive games can inspire interesting and creative ways to learn arithmetic. Teachers can incorporate math videos and computer games to demonstrate how to subtract when using double-digits. Other methods include sing-along songs with subtraction themes, using beads and playing Subtraction Bingo. Teachers also can incorporate Monopoly money to give children a visual aid when solving problems.
Math teachers can assign double-digit subtraction problems on the board and wait for the children to answer them. Once everyone is finished, the teacher can pair up the children. Each pair should include one strong student and one struggling student. As they review the answers, the stronger student can assist the struggling one with the process of attaining the right answer. Then, the teacher can place 10 problems on the board for each team to work on together. Peer teamwork can unite students and make math more personable and enjoyable.
Homework is just as important as classwork. Teachers can assign five easy double-digit problems for students to answer. They also can ask for students to create their own original problems based on their classwork and homework assignments. By creating their own double-digit problems, students can further understand the method behind solving these problems. Teachers must specify that the problems must include simple double-digits, which does not include regrouping. Parents or tutors can assist children in coming up with problems. Instead of solving them, children can bring them to school and switch with a partner for a classwork exercise.