如题所述
第1个回答 2021-02-04
818181×42-81×424242简便计算?
818181×42-81×424242
=(818181×42)÷42-(81×424242)÷42
=818181-81x10101
=818181-818181
=0
818181×42-81×424242
=(818181×42)÷42-(81×424242)÷42
=818181-81x10101
=818181-818181
=0
第2个回答 2021-02-05
818181×42-81×424242简便计算?
818181×42-81×424242
=81X10101X42-81X42X10101
=0
818181×42-81×424242
=81X10101X42-81X42X10101
=0
第3个回答 2021-02-05
解:818181ⅹ42-81ⅹ424242
=42x(818181-81x10101)
=42X(818181-818181)
=42x0
=0
=42x(818181-81x10101)
=42X(818181-818181)
=42x0
=0
第4个回答 2021-02-04
原式=(81×10101)×42-81×(42×10101)
=81×10101×42-81×42×10101
=0
=81×10101×42-81×42×10101
=0
第5个回答 2021-02-04
818181*42-81*424242
=10101*81*42-81*42*10101
=0
=10101*81*42-81*42*10101
=0