Khan Academy Static

Learn how to add two-digit numbers. By the end of this tutorial, you'll be able to solve problems like 48+6 and 48+21. More advanced problems like 48+28 will be covered in a future tutorial.

203_Regrouping_to_add_1_digit_number.html

201_Adding_2_digit_numbers_without_regrouping_2.html

200_Adding_2_digit_numbers_without_regrouping_1.html

204_Adding_by_making_a_group_of_10.html

202_Breaking_apart_2_digit_addition_problems.html