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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 5: Tính nhanh: a) 2904,02 – 152,36 – 547,64 b) 619,18 – ( 35,48 + 19,18 ) – 64,52 Câu trl nhanh ạaa><

Toán Lớp 5: Tính nhanh:
a) 2904,02 – 152,36 – 547,64
b) 619,18 – ( 35,48 + 19,18 ) – 64,52
Câu trl nhanh ạaa><

Comments ( 2 )

  1. a,2904,02-152,36-547,64=2204,02;
    b, 619,18 – ( 35,48 + 19,18 ) – 64,52=500
     

  2. $\text{a) 2904,02 – 152, 36 – 547, 64}$
    $\text{= ( 2904,02 -152,36 ) – 547,64}$
    $\text{= 235638 – 152,36}$
    $\text{= 235485,64 }$
    $\text{b) 619,18 – ( 35,48 + 19,18 ) – 64,52}$
    $\text{=  619,18 – 54,66 – 64,52}$
    $\text{= (619,18 – 54,66 ) – 64,52}$
    $\text{=564,52 – 64,52}$
    $\text{= 500}$

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222-9+11+12:2*14+14 = ? ( )