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Math “Find the Mistake” Warm-Up Generator

A worked problem with one intentional error — spot it, fix it, then check the correct solution.

Filter by topic

Uncheck a topic to leave it out of both the projector shuffle and the worksheet generator.

Filter by grade band

Same idea by level — scope the bank to elementary, middle, or high school problems. Both filters apply together.

Find the Mistake

Name: __________________________   Date: __________

Each problem below has one mistake in the worked solution. Find it, explain it, and write the correct answer.

Answer Key

    Add a problem

    Full bank (0 problems)

    Built-in problems can’t be deleted, but you can disable one to leave it out of the projector and worksheet. Only your own custom problems can be deleted.