Curated OER
Balancing Number Sentences to Introduce Missing Values
Students balance number sentences to learn about missing values. In this balanced equations instructional activity, students use the word problem to study missing values. Students watch a video about the topic and play two games about...
Curated OER
Add and Subtract to 20 Missing Values (1)
In this missing values learning exercise, students add and subtract the given equations for the numbers that range up to twenty. Students write the missing numbers in the blank.