Addition & Subtraction

(range of one hundred)

Goal - To be able to quickly add, subtract, and break apart numbers efficiently using non counting strategies

What to teach?

  • 2-digit + 1-digit (within decade)
  • 2-digit - 1-digit (within decade)
  • 2-digit + 1-digit (crossing over decade)
  • 2-digit - 1-digit (crossing over decade)
  • 2-digit + 2-digit (using jump or split strategies)
  • 2-digit - 2-digit (split strategy)
  • 2-digit - 2-digit (using jump or count up strategies)