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题型:填空题 题类:常考题 难易度:困难
异分母分数加、减法(不含带分数) 6925
⑴15.6×13.1-15.6- 1.56×21 ⑵
⑶ ⑷
⑸
×=
×=
45×=
×3.6=
+=
÷3=
6÷=
÷=
=
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