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calculeaza in 2 moduri 6×(17+28) si (25+49)×7 si (90-36)×5=

Răspuns :

Gabrielaelena1oybco2
6×(17+28)=6×45=270
6×(17+28)= 6×17+6×28=102+168=270
(25+49)×7=74×7=518
(25+49)×7=25×7+49×7=175+343=518
(90-36)×5=54×5=270
(90-36)×5=90×5-36×5=450-180=270
Mult succes!

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