In this activity, students gain practice with their addition facts and in checking work. Students are to check over each problem to find five problems that have incorrect sums. Students then circle these incorrect sums and write the correct sum underneath each incorrect sum.
All 13 facts, 0 through 12, have been accounted for as well as the Order Property of each fact. The only problem that has been included once instead of twice is 1+1.
These can be used for bell ringers, daily homework, or center work.