Mathematics
Junior High

これのやり方教えてください
(私小学生なので、小学生のやり方で教えて欲しいです🙇‍♀️)

(1) 2018 + 1+ 13 X | 15 + 17 17 + 19 19 + 21 21 + 23 ニ 15 × 17 17 × 19 19 × 21 21 × 23

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