2 câu trả lời
`5 + 5 + 5555 + 789 + 240 - 347 + 345`
`= 10 + 5555 + 789 + 240 - 347 + 345`
`= 5565 + 789 + 240 - 347 + 345`
`= 6354 + 240 - 347 + 345`
`= 6594 - 347 + 345`
`= 6247 + 345`
`= 6592`
5+5 +5555+789+240-347+345
= (5+5 +5555+345+240) + (789-347)
= 6150 + 442
= 6592