This is a set of pages for those who want student practice in double digit addition.
This method of partial sums addition, which I prefer to use - has more students grasping the place value focus. You break it apart horizontally, in tens and then ones (or hundreds, tens, ones) then vertically add each place before horizontally adding those place value sums. Take a look. Included are five practice pages - the first one with an answer sheet to show how to teach it. Difficulty increases slightly with each page.
Want all answer pages? See Answer Pages to Double Digit Addition (available separately)
Want 3-Digit pages? See Three Digit Addition with Regrouping using Partial Sums/Break-Apart Method