如何用简便法计算63×48+52_数学解答

如何用简便法计算63×48+52

人气：126 ℃　时间：2020-01-10 06:36:05

解答

63×48+52
=（60+3）×48+52
=60×48+3×48+52
=60×(50-2)+3×(50-2)+52
=60×50-60×2+3×50-3×2+52
=3000-120+150-6+52
=3076