Răspuns:
Explicație pas cu pas:
26 m + 320 dm - 800 cm = ? m
= 26 m + 32 m - 8 m =
= 58 m - 8 m =
= 50 m
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320 dm = (320:10) m = 32 m ( dm < m de 10 ori )
800 cm = (800:100)m = 8 m ( cm < m de 100 de ori )
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4 000 ml + 2 l - 30 dl = ? l ( litri )
= 4 l + 2 l - 3 l =
= 6 l - 3 l =
= 3 l
4000 ml = (4000 : 1000 ) l = 4 l ( ml < litru de 1 000 de ori )
30 dl = (30:10)l = 3 litri ( dl < l de 10 ori )
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800 hg × 5 + 20 kg = ? kg
= 4 000 hg + 20 kg =
= 400 kg + 20 kg =
= 420 kg
4000 hg = ( 4000:10)kg = 400 kg ( hg < kg de 10 ori )
#copaceibrainly
