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Croatian School-Level Competitions
Grade 9
2020
Problem 1
Grade 9 2020 Problem 1
Algebra
Digits
Powers
Odredi zbroj svih znamenaka dekadskog zapisa broja
(
10
2020
+
2020
)
2
(10^{2020} + 2020)^2
(
1
0
2020
+
2020
)
2
.