General Information
Aligned Standards
This vetted resource aligns to concepts or skills in these benchmarks.Suggested Tutorials
Learn how to find a missing value when there are subtraction expressions on both sides of an equal sign by using comparative relational thinking and a number line in this interactive tutorial.
This is part 3 in a 3-part series. Click below to open the other tutorials in the series on comparative strategies.
Learn how to think fast to find a missing value when there are subtraction expressions on both sides of an equal sign by using using comparative relational thinking and a part-whole board in this interactive tutorial.
This is part 2 in a 3-part series. Click below to open the other tutorials in the series on comparative strategies.
- Part 1: Think Fast! Comparative Strategies (Addition expressions on both sides of the equal sign)
- Part 3: Think Fast! Comparative Strategies [COMING SOON]