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

Toán Lớp 5: 5km 75m=-.km A 5,075 B 5,75 C 57,5 D 575

Toán Lớp 5: 5km 75m=…..km
A 5,075 B 5,75 C 57,5 D 575

Comments ( 2 )

  1. 5km 75m=…..km
    A.5,075
    B. 5,75
    C. 57,5
    D. 575

  2. $\#wcdi$
    $\text{5km 75m=…..km}$
    $\text{A 5,075             B 5,75                      C 57,5               D 575}$
    $\text{⇒ Ta có 1km = 1000 m}$
    $\text{⇒ 1 m = $\frac{1}{1000}$  km}$
    $\text{⇒ Vậy 75m  = $\frac{75}{1000}$ km}$
    $\text⇒ {5km 75m= \frac{5075}{1000} =5,075  km }$
    $\text{⇒ Vậy đáp án cần chọn là A }$

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