Question

66
+ 6
____
____

Explanation:

Step1: Add the units digits

We add the units digits of 66 and 6. The units digit of 66 is 6, and the units digit of 6 is 6. So, \(6 + 6 = 12\). We write down 2 in the units place and carry over 1 to the tens place.

Step2: Add the tens digits with carry

The tens digit of 66 is 6, and we have a carry - over of 1 from the previous step. So, we calculate \(6+0 + 1=7\) (the 0 is because the number 6 has no tens digit). We write 7 in the tens place.

Answer:

\(72\)