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8dm2x 4= 32 dm2
1dm x 1dm=1dm2
1dm2x2=2 dm2
32dm2+2dm2+34dm2
zużyjemy 34 dm2 papieru=340 cm2 papieru
8dm² ∧ 4 = 32dm²
32dm² + 4dm² = 36dm²
odp: Zużyli 36dm² papieru