Question

2)
66
+ 6
_____
_____

Explanation:

Step1: Add the units digits

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 digit with carry

The tens digit of 66 is 6, and we have a carry of 1. So, \(6+ 1=7\). We write down 7 in the tens place.

Answer:

\(72\)