4.65x32+2.5x46.5+0.465x430

changchen8292022-10-04 11:39:541条回答

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4.65x32+2.5x46.5+0.465x430
=4.65x32+25x4.65+4.65x43
=4.65x(32+25+43)
=4.65x100
=465
1年前

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