Bài 1 trang 62 SGK Toán 5

Tính:

\(a) \;375,84 - 95,69 + 36,78\);                  \( b) \;7,7 + 7,3 \times 7,4\).  

Lời giải

a) \(375,84 - 95,69 + 36,78\)  

    \(= 280,15 + 36,78\) 

    \(= 316,93\)   

b) \( 7,7 + 7,3 \times 7,4\)

    \(= 7,7 + 54,02\)

   \(= 61,72\)        


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