Zero is the identity element for addition.

Any number plus zero is always the original number!

1.  3 + 0 =        3 Answer	2. 0 + 8 =       8 Answer
3.  0 + 14 =      14 Answer	4.  5 + 0 =      5 Answer
5.  21 + 0 =     21 Answer	6. 0 + 34 =    34 Answer
7. 0 + 17 =       17 Answer	8. 40 + 0 =     40 Answer
9. 53 + 0 =      53 Answer	10. 0 + 67 =   67 Answer
11. 0 + 98 =     98 Answer	12. 256 + 0 = 256 Answer
13.  345 + 0 = 345 Answer	14. 0 + 830 = 830 Answer

Click on the zero to review the identity element.