Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 9)
Have your class work through exercises focused on number patterns with place value. Present each problem, allow your class to work through it, and then show them what Sal did to solve each problem. Every problem is completely explained...
Curated OER
Singapore Math: Grade 3a, Unit 1 (part 9)
Have your class work through a series of exercises focused on number patterns with place value. Present each problem, allow your class to work through each one, and then show them what Sal did to solve each problem. Every problem is...