$$80 \times 2-90 \div 3+70 \div 5 \times 3$$
$172$
$$160-\frac{90}{3}+\frac{70}{5}\times 3$$
$$160-30+\frac{70}{5}\times 3$$
$$130+\frac{70}{5}\times 3$$
$$130+14\times 3$$
$$130+42$$
$$172$$
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$2^{2}\times 43$
