Lesson Plan
Curated OER

Reverse Percentages

For Teachers 5th - 10th
In this percentages worksheet, students use a calculator to find the original number in reverse percentages problems. Students complete 7 problems total.
Worksheet
Curated OER

Broken Keys

For Students 2nd - 4th
In this broken keys worksheet, students pretend to show the number on a calculator if some of the keys are broken. For example, if the 1 and 2 are broken they show 12 by add 5 and 7. Students complete 8 problems.