? Enjoy our growing library of math videos at https://www.numberock.com ? Lesson plan and materials below: ? NUMBEROCK Digital Library 50% OFF: https://www.teacherspayteachers.com/Product/Math-Worksheets-More-NUMBEROCK-Musical-Math-Workbook-and-Activities-2200780 ? Age: Kids in 3rd Grade - 4th Grade SUMMARY: Add and regroup chickens and ants with Marcos and his little brother, Jose, on their farm. Marcos loves ants, and Jose thinks they're a good source of protein... Will Marcos be able to save his insect friends from Jose's hunger!? Watch this song about triple digit addition with regrouping to find out what happens! LYRICS: Triple Digit Addition with Regrouping One hundred eighty-nine hens are inside, and nine hundred eighty-five are outside. To find how many hens are in the coop, we’ve gotta know how to add and regroup. Nine and five’s fourteen; write four; the ten carries. One plus eight is nine, plus eight is seventeen. Keep the seven; the hundred regroups. Two