简便计算:25.4×13-254×0.3
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简便计算:25.4×13-254×0.3
简便计算:25.4×13-254×0.3
简便计算:25.4×13-254×0.3
原式=25.4*13-25.4*3
=25.4*(13-3)
=25.4*10
=254
=25.4x13-25.4x0.3x10
=25.4x(13-3)
=254
25.4×13-254×0.3
=25.4×13-25.4×3
=25.4×(13-3)
=254