Curated OER
Add or Subtract Whole Numbers Up to 1000
Elementary schoolers solve practice problems on the board and are shown how to line up the numbers for addition. They solve various addition problems in small groups. Everyone continues the same process for solving subtraction problems.
Curated OER
How to Calculate Your Age by Chocolate
In this math puzzle worksheet, students follow detailed directions to find their age. They begin with the number of times per week they eat chocolate. Their final answer tells how much chocolate they want or eat as well as their age.