Watch a seven-year-old meet 87 + 11 for the first time and you may see eyes widen at the big numbers. Then something nice happens: they notice that 7 + 1 and 8 + 1 are easy. This 2nd grade two-digit addition without regrouping worksheet builds on that moment. Twenty-four vertical addition problems fill the page in four columns, labeled a to x. Every problem adds two two-digit numbers, and no column of ones ever passes nine, so the work stays clean. All are sums up to 100, from 38 to 98. A young explorer with a backpack watches from the corner. A second page gives the answer key.