4.65×37+46.5×53-0.465×300简便计算?
2022-04-21
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4.65×37+46.5×53-0.465×300
=4.65×10×3.7+46.5×53-0.465×100×3
=46.5×3.7+46.5×53-46.5×3
=46.5×(3.7+53-3)
=46.5×53.7
=2497.05
=4.65×10×3.7+46.5×53-0.465×100×3
=46.5×3.7+46.5×53-46.5×3
=46.5×(3.7+53-3)
=46.5×53.7
=2497.05
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