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Calculeaza in doua moduri. (285+107)×1000=

Răspuns :

1)392x1000=392000
2)285x1000+107x1000=285000+107000=392000
Prima metoda:
1) 285+107= 392
2)392x1000= 392000
A doua metoda:
1) 285x1000=285000
2)107x 1000=107000
3) 285000+107000=392000