5.28×99的简便计算
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5.28×99的简便计算5.28×99的简便计算5.28×99的简便计算5.28×99=5.28×(100-1)=5.28×100-5.28=528-5.28522.925.28x99=5.28x(1
5.28×99的简便计算
5.28×99的简便计算
5.28×99的简便计算
5.28×99
=5.28×(100-1)
=5.28×100-5.28
=528-5.28
522.92
5.28x99
=5.28x(100-1)
=5.28x100-5.28x1
=528-5.28
=522.72
5.28×99
=5.28×(100-1)
=5.28×100-5.28×1
=528-5.28
=522.72