$$(0.8 \times 8.6)-(0.8 \times 3.2$$
$4.32$
$$6.88-0.8\times 3.2$$
$$6.88-2.56$$
$$4.32$$
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$\frac{2 ^ {2} \cdot 3 ^ {3}}{5 ^ {2}} = 4\frac{8}{25} = 4.32$