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laurine16
@laurine16
January 2021
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aidez moi svp les mathématiques
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nguyenso9
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1) 550 + 370 + 160 + 100 + 80 + 80 + 70 + 50 + 50 + 50 =
1 560
.
2) 1 320 + 1 100 + 300 + 240 + 190 + 170 + 150 + 140 + 130 + 130 =
5 130
3) a) 554,76 + 1 321,29 = 1 876,05
1 321,29 - 554,76 = 766,53
766,53 × 100 ÷ 1 876,05 ≈
40,86% (Chine)
3) b) 371,86 + 1 095,35 = 1 467,21
1 095,35 - 371,86 = 723,49
723,49 × 100 ÷ 1 467,21 ≈
49,31% (Inde)
3) c) 157,81 + 303,35 = 461,16
303,35 - 157,81 = 145,54
145,54 × 100 ÷ 461,16 ≈
31,56% (Etats-Unis)
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nguyenso9
ben les ordres de grandeurs c les questions 1 et 2
nguyenso9
ah... en 6e...
laurine16
ouï
nguyenso9
ben c'est pas si difficile que ca, c'est juste le produit en croix
nguyenso9
multiplication et division
nguyenso9
mais si tu veux pas de pourcentage, tu prends que les résultats des deux premieres lignes
laurine16
fait comme sa
laurine16
addition
laurine16
et soustraction
laurine16
allo
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Verified answer
1) 550 + 370 + 160 + 100 + 80 + 80 + 70 + 50 + 50 + 50 = 1 560.2) 1 320 + 1 100 + 300 + 240 + 190 + 170 + 150 + 140 + 130 + 130 = 5 130
3) a) 554,76 + 1 321,29 = 1 876,05
1 321,29 - 554,76 = 766,53
766,53 × 100 ÷ 1 876,05 ≈ 40,86% (Chine)
3) b) 371,86 + 1 095,35 = 1 467,21
1 095,35 - 371,86 = 723,49
723,49 × 100 ÷ 1 467,21 ≈ 49,31% (Inde)
3) c) 157,81 + 303,35 = 461,16
303,35 - 157,81 = 145,54
145,54 × 100 ÷ 461,16 ≈ 31,56% (Etats-Unis)