9999×1111+3333×2223+6666×2222
=3333×3×1111+3333×2223+3333×2×2222
=3333×3333+3333×2223+3333×4444
=3333×(3333+2223+4444)
=3333×10000
=33330000
9999乘1111+3333乘2223+6666乘2222怎么简便计算?
9999乘1111+3333乘2223+6666乘2222怎么简便计算?
数学人气:942 ℃时间:2019-10-24 06:14:22
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