Prepare two worksheets, each with twenty addition problems requiring regrouping to solve. Give all class members a copy of the first sheet and allow ten minutes to work on the answers. Divide students into two teams and assign half the chalkboard to each. Game begins when one player from each team goes to the board to record an answer for any one of the problems. Players rotate turns and can either tackle a new problem or change a teammate's answer. When a team agrees that all problems have been correctly solved, the last player declares, "Stay." When both teams are finished, reveal the answers and award points for each one done right. Play another round using the second worksheet.
This game requires two players, paper, pencil, and a deck of cards with tens and face cards removed. Each person draws six cards, arranging them to make a three-digit addition problem. The goal is to come up with the largest sum while also applying regrouping. The players write down their problems and solutions, exchange papers, and check results. The one who finds the largest total, using regrouping, gets a point. First to accumulate ten points, is the winner.
Position a desk or table at the front of the room and set three colored dice upon it. Decide which will represent ones, tens, and hundreds. Station one person by the table to act as dice-roller. Separate the class into two squads. Two players from each squad approach the table to watch the toss of the dice. Observing the digits displayed, one member of each pair, writes a three-digit number on the chalkboard, being careful with the placement of ones, tens, and hundreds. The dice is tossed again and the second player writes a second three-digit number under the first. Together, the two work to find the answer, write it on the board, and circle if regrouping was used. The pair of players who first completes their problem correctly, gains a point for the team. Continue with two new contestants from each team.
Try this variation of the popular game, Bingo. Purchase blank bingo cards and transparent chips or make your own. Formulate twenty-five addition problems, all of which require regrouping to solve. Record the answers on each bingo card, alternating their placement. Supply each player with a card, chips, pencil and scratch paper. Write the first problem on the board, requesting the group to provide a solution. Anyone holding a card with the correct answer, covers it with a chip. Continue in this way until someone fills one section, vertically, horizontally, or diagonally, and hollers, "Bingo."