$$130-10 \times 120 \div 12+144 \div 12$$
$42$
$$130-\frac{1200}{12}+\frac{144}{12}$$
$$130-100+\frac{144}{12}$$
$$30+\frac{144}{12}$$
$$30+12$$
$$42$$
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$2\times 3\times 7$
