17.5×3.1÷17.5×3.1怎么算

17.5×3.1÷17.5×3.1

=（17.5÷17.5）x3.1x3.1

=1x3.1x3.1

=3.1x(3 0.1)

=3.1x3 3.1x0.1

=9.3 0.31

=9.61

里手正解，不大白能够诘问！祝您进修朝上进步

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