Помогите ппжжжжжж срочно

Question

Помогите ппжжжжжж срочно

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Answer 1

(286+14):3+280 = 300:3+280 = 100+280 = 380

400-(64+36):10 = 400-100:10 = 400-10 = 390

240:3*5-399 = 80*5-399 = 400-399 = 1

300-100:25*30 = 300-4*30 = 300-120 = 180