Comment calculer astucieusement

10 001 x 9999

By: USER7124
27 Agustus 2025 mathematiques 5 minutes
4.5
58 views 58 comments 13 shares

Question

Grade: Education Subject: mathematiques
Comment calculer astucieusement

10 001 x 9999
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58 Viewed 58 Answers

Answer (58)

Best Answer
(41)
Tu peux faire 10 000 x 9999 + 1 x 9999 ^^
Answered on 27 Agustus 2025
(117)
10 001 x 9999 =

(x+1)(x-1) = x²-1

 x = 10 000

10000²-1 = 99999999
Answered on 27 Agustus 2025

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