简便计算方法如下:
25×66+35×46-46
=66×25+35×25-1×25-21+35×21
=(66+35-1)×25+(35-1)×21
=100×25+34×21
=2500+34×(20+1)
=2500+34×20+34×1
=2500+680+34
=3214
25×66+35×(66-20)-46=25×66+35×66-35×20-46=(25+35)×66-700-46=60×66-700-46=3960-746=3214