7/19 12/19 × 5/61/4 3/4 ÷ 2/38/7 × 21/16 1/2101 × 1/5 – 1/5 × 2150+160÷40 (58 370)÷(64-45)120-144÷18 35347 45×2-4160÷52(58 37)÷(64-9×5)95÷(64-45)178-145÷5×6 42 420 580-64×21÷28812-700÷(9 31×11) (136 64)×(65-345÷23)85 14×(14 208÷26)(284 16)×(512-8208÷18)120-36×4÷18 353/7 × 49/9 - 4/38/9 × 15/36 1/2712× 5/6 – 2/9 ×38× 5/4 1/46÷ 3/8 – 3/8 ÷64/7 × 5/9 3/7 × 5/95/2 -( 3/2 4/5 )7/8 ( 1/8 1/9 )9 × 5/6 5/63/4 × 8/9 - 1/37 × 5/49 3/146 ×( 1/2 2/3 )8 × 4/5 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 – 14 × 2/74/5 × 25/16 2/3 × 3/414 × 8/7 – 5/6 × 12/1517/32 – 3/4 × 9/243 × 2/9 1/35/7 × 3/25 3/73/14 ×× 2/3 1/61/5 × 2/3 5/69/22 1/11 ÷ 1/25/3 × 11/5 4/345 × 2/3 1/3 × 157/19 12/19 × 5/61/4 3/4 ÷ 2/38/7 × 21/16 1/2101 × 1/5 – 1/5 × 2150+160÷40 (58 370)÷(64-45)120-144÷18 35347 45×2-4160÷52(58 37)÷(64-9×5)95÷(64-45)178-145÷5×6 42 420 580-64×21÷28812-700÷(9 31×11) (136 64)×(65-345÷23)85 14×(14 208÷26)
追问拜托,是简算,不是脱式计算
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