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  • Utilizator Brainly
2014-06-05T14:01:22+03:00
A.I____I
b.I____I____I____I____I____I____I____I
c.I____I+5

Suma este 635.
635-5=630
630:9=70 ( a )
70x7=490 ( b )
70+5=75 ( c )

Verificare : 70+490+75=635
3 3 3
2014-06-05T14:10:44+03:00
I----------------
i--------------------i
i---------------------------i
635/7=90,7
90,7-5=92