Question

42-8of(9-4)+2+642 - 8 of bracket 9 - 4 bracket + 2 + 6 ​

Answer 1

42-8*(9-4)+2+642-8*(9-4)(2+6)

=42-8*5+2+642-8*(5*8)

=42-8*5+2+642-8*40

=34*5+2+642-320

=170+2+642-320

=814-320

=494 (ans)

Hope this helps