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ex 7,8
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Ex 78 Va Roggggggggg Urgent class=

Răspuns :

7) 25×2=30(l doua canistre)
30÷5=6 (bidoane)
8) 1 canistra=1c
2 canistra=2c
1c=60hl
2c=40hl
1c+2c= 60+40=100hl
(1c+2c)×2=100×2=200hl
Ai de facut 200:100=2 drumuri.