[tex]8 \times (345 + 67 - 4) + 678 \times 2 + 7 + \frac{32}{8} = [/tex]
[tex]8 \times (412 - 4) + 678 \times 2 + 7 + \frac{32}{8} = [/tex]
[tex]8 \times 408 + 678 \times 2 + 7 + \frac{32}{8} = [/tex]
[tex]3264 + 678 \times 2 + 7 + \frac{32}{8} = [/tex]
[tex]3268 + 1356 + 7 + \frac{32}{8} = [/tex]
[tex]4620 + 7 + \frac{32}{8} = [/tex]
[tex]4627 + \frac{32}{8} = [/tex]
[tex]4627 + 4 = 4631[/tex]