Bài 2 trang 160 (Phép trừ) SGK Toán 5

Tìm \(x\):

a) \(x + 5,84 = 9,16;\)                                  b) \(x - 0,35 = 2,55.\)

Lời giải

a) \(x + 5,84 = 9,16\)

    \(x = 9,16 - 5,84\)

    \(x = 3,32\)

b) \(x - 0,35 = 2,55\)

    \(x = 2,55 + 0,35\)

    \(x = 2,9\)


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