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[(102×14+42×20-1 968):100+(13 452:38+95×10+2 696):1 000]:7=

Răspuns :

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Vezi imaginea GLY
[ ( 1428+840-1968)÷100+(354+950+2696)÷1000]÷7 =[(2268-1968)÷100+(1304+2696)÷1000]÷7
=300÷100+4000÷1000÷7 =3+4÷7=1