Answer:
25,356,653
Explanation:
1900099+23456554 = 25,356,653
Line up the numbers
0 1 9 0 0 0 9 9
+2 3 4 5 6 5 5 4
-------------------------
2 5 3 5 6 6 5 3
hope this helps
25356653
1900099+23456554=25356653
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