Less Challenging

• Subtract within 100 w/o crossing the 10

• Add within 100 without crossing the 10

• Add & sub within 20 without crossing 10

   

More Challenging

• Add & sub 2-digit #s without renaming

   

About This Sprint

Connect single-digit addition & subtraction within 10 to adding a single-digit number to a 2-digit number without renaming & subtracting a single-digit number from a 2-digit number without renaming, e.g.

4 + 2 = 9 - 3 =

14 + 2 = 19 - 3 =

24 + 2 = 29 - 3 =

94 + 2 = 59 - 3 =