
102×98和( )相等.A.(100+2)×98B.100+2×98C.100×98+2D.100×98×
102×98和()相等.A.(100+2)×98B.100+2×98C.100×98+2D.100×98×2...
102×98和( )相等.A.(100+2)×98B.100+2×98C.100×98+2D.100×98×2
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102×98
=(100+2)×98
=100×98+2×98.
故选:A.
=(100+2)×98
=100×98+2×98.
故选:A.
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