Toán Lớp 5: (86,05 x 17,3 -7,3 x 8,605) x (86,05 x 100 – 86,05 : 0,01) + 2017

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1. $#AS$

   (86,05 xx 17,3 – 7,3 xx 8,605) xx (86,05 xx 100 – 86,05 : 0,01) + 2017

   = (1488,665 – 62,8165) xx (8605 – 8605) + 2017

   = 1425,8485 xx 0 + 2017

   = 0 + 2017

   = 2017

   Trả lời
2. (86,05 × 17,3 – 7,3 × 8,605) × (86,05 × 100 – 86,05 : 0,01) + 2017

   = (86,05 × 17,3 – 7,3 × 8,605) × (86,05 × 100 – 86,05 : 1/100) + 2017

   = (86,05 × 17,3 – 7,3 × 8,605) × (86,05 × 100 – 86,05 × 100) + 2017

   = (86,05 × 17,3 – 7,3 × 8,605) × [(86,05 × 100) – (86,05 × 100)] + 2017

   = (86,05 × 17,3 – 7,3 × 8,605) × (8605 – 8605) + 2017

   = (86,05 × 17,3 – 7,3 × 8,605) × 0 + 2017

   = [(86,05 × 17,3 – 7,3 × 8,605) × 0] + 2017

   = 0 + 2017

   = 2017

   Trả lời