PIMSO 2022 - Mathematics - Grade 7 / Secondary 1 - National Round Question 16

Simplify: 1,111 + 2,212 + 3,313 + 4,414 + 5,515 + 6,616 + 7,717 + 8,318 + 9,419 + 10,520 + 11,621 + 12,722 + 13,823 + 14,924