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Glori973fazou
@Glori973fazou
April 2019
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Bonjour pouvez vous m'aider c pour demain voila c'est convertir en cm2 c l'exercice 13 et 14 merci de m'aider avant demain
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mathilde7614
Je crois je ne suis pas totalement sur
a: 6,1 cm2
b: 0,9 cm2
c: 0,18 cm2
d: 0,030 cm2
e:700 cm2
f: 0,32 cm2
2 votes
Thanks 2
esefiha
Exercice 13
a) 1 dm² = 100 cm² donc 0.61 dm² = 0.61 x 100 = 61 cm²
b) 1 m² = 10000 cm² donc 0.009 m² = 0,009 x 10000 = 90 cm²
c) 1 mm² = 0.01 cm² donc 218 mm² = 218 x 0,01 = 2,18 cm²
d) 1 dam² = 1000000 cm² donc 0.03 dam² = 0,03 x 1000000 = 30 000 cm²
e) 1 m² = 10000 cm² donc 7 m² = 7 x 10000 = 70 000 cm²
f) 1 mm² = 0.01 cm² donc 32 000 mm² = 32000 x 0,01 = 320 cm²
Exercice 14
a) 0,02 m² = 200 cm²
b) 0,031 dam² = 3,1 m²
c) 4 cm² = 0,04 dm²
d) 23 hm² = 230 000 m²
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Lista de comentários
a: 6,1 cm2
b: 0,9 cm2
c: 0,18 cm2
d: 0,030 cm2
e:700 cm2
f: 0,32 cm2
a) 1 dm² = 100 cm² donc 0.61 dm² = 0.61 x 100 = 61 cm²
b) 1 m² = 10000 cm² donc 0.009 m² = 0,009 x 10000 = 90 cm²
c) 1 mm² = 0.01 cm² donc 218 mm² = 218 x 0,01 = 2,18 cm²
d) 1 dam² = 1000000 cm² donc 0.03 dam² = 0,03 x 1000000 = 30 000 cm²
e) 1 m² = 10000 cm² donc 7 m² = 7 x 10000 = 70 000 cm²
f) 1 mm² = 0.01 cm² donc 32 000 mm² = 32000 x 0,01 = 320 cm²
Exercice 14
a) 0,02 m² = 200 cm²
b) 0,031 dam² = 3,1 m²
c) 4 cm² = 0,04 dm²
d) 23 hm² = 230 000 m²