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Calculeaza in doua moduri

20×140+20×3500


Răspuns :

Răspuns:

20×140+20×3500=2800+70000=72800

20×140+20×3500=20·(140+3500)=20·3640=72800

Primul mod :

20 × 140 + 20 × 3500 =

2800 + 70000 = 72800

Al doilea mod :

20 × 140 + 20 × 3500 =

20 × ( 140 + 3500 ) =

20 × 3640 = 72800