Use partial sums to find the sum of 46 and 27.

The correct answer is: 73

To find partial sums add the digits in tens place and ones place separately.
Partial sum of 46 + 27
Step 1 : Add digits in tens and ones place separately:
40                                    06
+ 20                   and        + 07

_____                             ______
60                                        13
Thus, the sum of 46 + 27 are 60 + 13 = 73.