Answer:
1222221
Explanation:
222222+999999
Start from the ones place, 2+9=11 (11)
Borrow 1, 2+9=11+1=12 (21)
Again, 2+9=11+1=12 (221)
Again, 2+9=11+1=12 (2221)
Again, 2+9=11+1=12 (22221)
And again, 2+9=11+1=12 (1222221)
Hope I helped! Good Luck!
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