Một công ty có 95 000 đồng tiền quỹ. Họ dùng 27 500 đồng để mua giấy in và 18 750 đồng để mua bút. Hỏi số tiền quỹ còn lại của công ty là bao nhiêu?

Mẫu: \(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{5746}\\{1962}\end{array}} \\\,\,\,3784\end{array}\)                                    Thử lại: \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{3784}\\{1962}\end{array}} \\\,\,\,\,5746\end{array}\)

a)               8 923 – 4 157

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27 069 – 9 537

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b)             \(\frac{8}{{15}} - \frac{2}{{15}}\)

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\(1 - \frac{3}{7}\)

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c)             7,284 – 5,596

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0,863 – 0,298

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