Tính hợp lí:1-4-7+10+13-16-19+22-25+28+31-34+37 câu hỏi 3599008 - hoidap247.com

Question

Tính hợp lí:1-4-7+10+13-16-19+22-25+28+31-34+37

Masonn · Answer

`1-4-7+10+13-16-19+22-25+28+31-34+37`
`=(1-4-7+10)+(13-16-19+22)+(-25+28+31-34)+37`
`=0+0+0+37`
`=37`

Huy2710 · Answer

`1-4-7+10+13-16-19+22-25+28+31-34+37`

`=1−4−7+10+13−16−19+22−25+28+31−34+37`

`=(1−4−7+10)+(13−16−19+22)−(25-28-31+34)+37`

`=0+0-0+37`

`=37`

Tính hợp lí:1-4-7+10+13-16-19+22-25+28+31-34+37