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用递等式计算:900÷(120-20×3)(736÷16+27)×18[175-(49+26)]×23
用递等式计算:900÷(120-20×3)(736÷16+27)×18[175-(49+26)]×23....
用递等式计算:900÷(120-20×3)(736÷16+27)×18[175-(49+26)]×23.
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(1)900÷(120-20×3)
=900÷(120-60)
=900÷60
=15
(2)(736÷16+27)×18
=(46+27)×18
=73×18
=1314
(3)[175-(49+26)]×23
=[175-75]×23
=100×23
=2300
=900÷(120-60)
=900÷60
=15
(2)(736÷16+27)×18
=(46+27)×18
=73×18
=1314
(3)[175-(49+26)]×23
=[175-75]×23
=100×23
=2300
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