Bonjour,
Ex. 39 :
5 × 4 - 2 × 3 = 14 (m²)
Ex. 41 :
a) 5 × 12 ÷ 2 = 30 (cm²)
b) 6 × (7,5 + 9,5) ÷ 2 = 51 (cm²)
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Bonjour,
Ex. 39 :
5 × 4 - 2 × 3 = 14 (m²)
Ex. 41 :
a) 5 × 12 ÷ 2 = 30 (cm²)
b) 6 × (7,5 + 9,5) ÷ 2 = 51 (cm²)