These error analysis tasks are designed to encourage students to think critically when analysing their work and recognise computational errors. The also provides an opportunity for students to demonstrate their mathematical reasoning by explaining the original error and justifying their thinking.
These particular error analysis tasks focus on the understanding of 2-digit place value and ordering numbers. They are most suited to students in lower primary but may be useful for older students with misconceptions regarding naming numbers.
There are blank templates included so that you can add your own problems.