$$0\cdot9-52.3-3\cdot2-(74-5\cdot4-3\cdot8)8]$$
$-298.3$
$$0-52.3-3\times 2-\left(74-5\times 4-3\times 8\right)\times 8$$
$$-52.3-3\times 2-\left(74-5\times 4-3\times 8\right)\times 8$$
$$-52.3-6-\left(74-5\times 4-3\times 8\right)\times 8$$
$$-58.3-\left(74-5\times 4-3\times 8\right)\times 8$$
$$-58.3-\left(74-20-3\times 8\right)\times 8$$
$$-58.3-\left(54-3\times 8\right)\times 8$$
$$-58.3-\left(54-24\right)\times 8$$
$$-58.3-30\times 8$$
$$-58.3-240$$
$$-298.3$$
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