小学奥数训练题之小数 分数的运算.doc
小数、分数的运算
1 计算下列各式:
(1)199.9×19.98-199.8×19.97;
(2)1÷32÷0.05÷0.25÷0.5;
(3)4.83×0.59+0.41×1.59-0.324×5.9;
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