98765×4321-98766×4320(简便计算)

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98765×4321-98766×4320(简便计算)98765×4321-98766×4320(简便计算)98765×4321-98766×4320(简便计算)98765×4321-98766×43

98765×4321-98766×4320(简便计算)
98765×4321-98766×4320(简便计算)

98765×4321-98766×4320(简便计算)
98765×4321-98766×4320
=98766×4321-4321-98766×4320
=98766×(4321-4320)-4321
=98766-4321
=94445

98765×4321-98766×4320=98765×(4320+1)-(98765+1)×4320
=98765×4320+98765-98765×4320-4320
=98765-4320
94445

98765×4321-98766×4320=98765×(4320+1)-(98765+1)×4320
=98765-4320
=94445