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题型:填空题 题类:常考题 难易度:普通
山西省晋城区2018-2019学年五年级上学期数学期末卷
= 6 =
= = = = =
⑴ ⑵
⑶ ⑷
⑸99×98-98×98+98×97-97×97+…+4×3-3×3 ⑹
⑺ ⑻
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