Double Digit Adding With Regrouping: Danny was introduced to regrouping (carrying) today. He picked it up after a few problems. Example: 15 + 35= 50. In the first column he added the 5's getting 10 putting the 0 down and carrying the 1. In the next column he added 3+ 1 +1 = 5. I was impressed with how quickly he got it. Super, Danny.