4.97×[2.46÷(5.58-5.28)] 怎样简便运算

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4.97×[2.46÷(5.58-5.28)] 怎样简便运算
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4.97×[2.46÷(5.58-5.28)] 怎样简便运算
4.97×[2.46÷(5.58-5.28)] 怎样简便运算

4.97×[2.46÷(5.58-5.28)] 怎样简便运算
4.97×[2.46÷(5.58-5.28)]
=4.97×(2.46÷0.3)
=4.97×8.2
=40.754

4.97×[2.46÷(5.58-5.28)]
=4.97x(2.46÷0.3)
=4.97x8.2
=40.754
这道题应该没有太简便的运算方法了

4.97×[2.46÷(5.58-5.28)]
=(5-0.03)×[2.46÷(5.58-5.28)]
=5×(2.46÷0.3)-(0.03÷0.3×2.46)
=5×8.2-0.246
=40.754