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Double Digit Addition

Bestselling Learn Guitar on Android! In this video, Mahalo math expert Allison Moffett shows you how to do double-digit addition. Step 1 --------------------------------------------------------------------- To add two double-digit numbers like 77 and 29 together, start by rewriting the problem vertically so that the ones column lines up and the tens column lines up as well. Step 2 --------------------------------------------------------------------- Add the ones column together. Since 9+7=16, take the ones digit of the sum (6) and write it in the ones column below the sum line. Step 3 --------------------------------------------------------------------- Take the tens digit (1) and carry it over the top of the tens column.?Add the 7, 2 and 1 together (7+2+1=10). Step 4 --------------------------------------------------------------------- Since there are no more columns to add, write the 10 as a whole digit below the tens column. Your answer is 106. Read more by visiting our page at:
Length: 02:59


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