Curated OER
Rice Math
Fourth graders practice basic subtraction facts using a number grid. In this rice math lesson, 4th graders figure out how much more they need to get to a specific number. Students complete a chart of examples and then play a game.
Curated OER
Addition and Subtraction 3 Numbers combination
In this computation instructional activity, students add and subtract three numbers. The seventeen problems all involve parenthesis. Students use order of operations to correctly solve each problem.