cf 用计算机算最简单了呗,嘿嘿. 6666*5555-6665*2222
=6666*5555-6665*2222-2222+2222
=6666*5555-6666*2222+2222
=6666*3333+2222
=2222*(9999+1)
=22220000
cf 用计算机算最简单了呗,嘿嘿. 6666*5555-6665*2222
=6666*5555-6665*2222-2222+2222
=6666*5555-6666*2222+2222
=6666*3333+2222
=2222*(9999+1)
=22220000