Arithmetic Grade Two

Lesson Fifty-three: Regrouping If Necessary

As you know, you don't always have to regroup. Here's a problem in which it is necessary for you to regroup: 

    34
   - 7
   ----
Problem without answer

    tens  |   ones
   -------|---------
      2   |    14
    -     |     7
   -------|---------
      2   |     7
After borrowing from the tens column, we have 2 in the tens column and 14 in the ones column. The rest is simple!

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