Bài 1 trang 51 SGK Toán 5

Tính:

a) \(5,27 + 14,35 + 9,25\) ;                        b) \(6,4 + 18,36 + 52\) ;

c) \(20,08 + 32,91 + 7,15\) ;                      d) \(0,75 + 0,09 + 0,8\) .

Lời giải


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