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4789怎么列算式等于24

(4+8)×(9-7) =12×2 =24

【7-(9-8)】*4

(1)4789-5768÷56×27,=4789-103×27,=4789-2781,=2008;(2)(5.1÷0.17+4.2)×4.5,=(30+4.2)×4.5,=34.2×4.5,=153.9;(3)(0.75- 3 16 )×( 2 9 + 1 3 ),= 9 16 × 5 9 ,= 5 16 ;(4) 1 3 ÷[( 2 3 + 1 5 )× 3 13 ],= 1 3 ÷[ ...

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