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a fost răspuns

Calculează va roggg repede
(8×10 hl+6×100dal)÷7=?kl
10 000cl:5 -2000dl÷10=?l
[7kl+(4×550dal-2×10hl)]÷9=?hl

Răspuns :

Denisa560
transformari:
1) 10hl=10÷10=1kl
100dal=100÷100=1kl
(8×1kl+6×1kl)÷7=14÷7=2

2)transformari:
10 000cl=10 000÷100=100l
2000dl=2000÷10=200
100l÷5-200÷10=20-20=0

3)transformari:
7kl=70hl
550dal=55hl
[70hl+(4×55hl-2×10hl)]÷9
(220 -20)=200
(70+200)=270
270÷9=30hl

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