The answer is 11
44.
22 + 22 = 44
22 + 44 = 66
40+48=88. 81 + 7 = 88...
22 + 22
22 = 44 / 2
120 - 76 = w+w. So: 2w = 44. So: w=22.
44
44 + 3676 + 601 = 4321
22 + 22 is 44 Take 22 pencils and take 22 more pencils, then you will get 44 pencils in total. Therefore, 22 + 22 = 44
22
The addition problem 221 plus 44 plus 6 equals to 271.