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1 supra 2 m + 3 supra 5 dm + 1 supra 25 dam=...... cm

Răspuns :

1m=100 cm
1dm=10 cm
1dam=1000 cm

/=supra

1/2 m=100:2=50 cm
3/5 dm=10x3/5=30/5=6 cm
1/25 dam=1000/25=40 cm

1/2 m+3/5 dm+1/25 dam=
50 cm+6 cm+40 cm=96 cm