424×98-424加括号怎么算? 5
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424×98-424=424X(1OO一2)一424
=4240O一424×2一424
=4240O一424X3
=42400-1272
=41128
424×98一424
=424×(98-1)
=424X97
=424×(100-3)
=424×100-424×3
=42400-1272
=41128
=4240O一424×2一424
=4240O一424X3
=42400-1272
=41128
424×98一424
=424×(98-1)
=424X97
=424×(100-3)
=424×100-424×3
=42400-1272
=41128
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