If '+' means 'x', '-' means '+', 'x' means '÷' and '÷' means '-' , then, 8 x 4 - 6 ÷ 3 + 1 = ?
After rearranging,
$$8\div4+6-3\times1$$
$$=2+6-3\times1$$
$$=2+6-3$$
$$=8-3$$
$$=5.$$
D is correct choice.
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