Maths Workbook Two Digits Addition with Carry Over or Regrouping (with Answers), Classes 3-5, 50 Pages, CBSE, ICSE  (English, Paperback, Amish Shetty)

When kids are learning two-digit addition and subtraction, one of the concepts they'll encounter is regrouping, which is also known as borrowing and carrying, carry-over, or column math. This is an important mathematics concept to learn, because it makes working with large numbers manageable when calculating math problems by hand. Practicing these math worksheets daily can help in improving the arithmetic skills of the child. Regular practice will help the kids to develop an interest in mathematics and also with these timed drills can improve their knowledge as well as problem solving speed and accuracy.