如何用简便法计算63×48+52
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/30 14:50:02
如何用简便法计算63×48+52
![如何用简便法计算63×48+52](/uploads/image/z/4290152-32-2.jpg?t=%E5%A6%82%E4%BD%95%E7%94%A8%E7%AE%80%E4%BE%BF%E6%B3%95%E8%AE%A1%E7%AE%9763%C3%9748%2B52)
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
=(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