Question

奥数222*22+889*66怎么算

Answer 1

222*22+889*66
=111*2*22+889*22*3
=22*2*111+22*2*889+889*22
=22*2*（111++889）+889*22
=44*1000+889*20+889*2
=44000+17780+1778
=63558

Answer 2

222×22+889×66
=111×66-111×22+889×66
=66×(111+889)-111×22
=66×1000-(100×22+11×22)
=66000-2200-2×121
=63800-242
=63558，😜😜😜😜😜