简便计算993ﾁ0ﾅ5 2×993×7 7ﾁ0ﾅ5

Question

如题所述

Answer 1

简便计算993ﾁ0ﾅ5 2×993×7 7ﾁ0ﾅ5
993ﾁ0ﾅ5 2×993×7 7ﾁ0ﾅ5
=(993+7)^2
=1000^2
=1000000