算式:(121+122+…+170)-(41+42+…+98)的结果是______
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![算式:(121+122+…+170)-(41+42+…+98)的结果是______](/uploads/image/z/2552550-6-0.jpg?t=%E7%AE%97%E5%BC%8F%EF%BC%9A%EF%BC%88121%2B122%2B%E2%80%A6%2B170%EF%BC%89-%EF%BC%8841%2B42%2B%E2%80%A6%2B98%EF%BC%89%E7%9A%84%E7%BB%93%E6%9E%9C%E6%98%AF______)
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算式:(121+122+…+170)-(41+42+…+98)的结果是______
算式:(121+122+…+170)-(41+42+…+98)的结果是______
算式:(121+122+…+170)-(41+42+…+98)的结果是______
(121+122+…+170)-(41+42+…+98)=(120+170)X50/2-(41+98)X58/2=7250-4031=3219
3244
4239
4229
3244