111 + 222 + 333 +. + 999 / 100 + 200 + 300... + 900

111 + 222 + 333 +. + 999 / 100 + 200 + 300... + 900


The denominator is (1 + 2 + 3 +...) +9) The molecule is (1 + 2 + 3 +...) +9) X 100, so after the approximate score, we get 100 / 111



Simple operation of 999 × 111 + 333 × 667


999×111+333×667
=333×3×111+333×667
=333×(333+667)
=333×1000
=333000



111+222+333+…… +999=?


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