Long Addition: 15 + 6

Quick Answer

15 + 6 = 21

Long Sum Calculator

Long Division

Enter first number:


Enter second number:




Sum result:

1 
15
+ 6
21

Step-by-step solution

Ones place value

5 + 6 = 11. Put the 1 in the Ones place. Carry the 1 to the Tens place.

1 
15
+ 6
 1

Tens place value

1 + 1 = 2. Put the 2 in the Tens place.

1 
15
+ 6
21

Long Sum Examples

Practice addition with these problems:

123 + 456= 579999 + 1= 1,000250 + 750= 1,000144 + 256= 400365 + 365= 730500 + 500= 1,000777 + 223= 1,0001,234 + 5,678= 6,912100 + 200= 30042 + 58= 100888 + 112= 1,000666 + 334= 1,000