计算(本题可用计算器计算): 22×221+2+1=_,333×3331+2+3+2+1=_,4444×44441+2+3+4+3+2+1=_.
问题描述:
计算(本题可用计算器计算):
=______,22×22 1+2+1
=______,333×333 1+2+3+2+1
=______. 4444×4444 1+2+3+4+3+2+1
答
=121,22×22 1+2+1
=12321,333×333 1+2+3+2+1
=1234321.4444×4444 1+2+3+4+3+2+1
故答案为:121,12321,1234321.