15. Simplify: (a) 327 x 7+25 x 327-3 x 327 (c)
35470 - 257 x 496 - 16 - 11.
(b) 458 x 102-458-45
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sjfmdmdkkdkdkfnfnfnnffnnf5594+48448(×84649×54646464)
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