196-224+196 简便计算

分类: 作业答案 • 2021-12-20 01:29:37

问题描述：

196-224+196 简便计算

答

196-224+196=（196+4）*2-8-224=400-232=168

答

196-224+196
=(200-4)-(200+24)+(200-4)
=200-4-200-24+200-4
=200-200+200-4-24-4
=200-(4+24+4)
=200-32
=168

答

196-224+196=196*2-224=392-224=168

答

原题变为200-4-200-24+200-4=200-32=168

答

(200-4)-(200+24)+(200-4)=168