(1)288÷[(26-14)×8]
=288÷[12×8]
=288÷96
=3;
(2)39×99+39
=39×(99+1)
=39×100
=3900;
(3)75+228+25
=75+25+228
=100+228
=328;
(4)25×32×125
=25×(4×8)×125
=(25×4)×(8×125)
=100×1000
=100000;
(5)101×99
=(100+1)×99
=100×99+1×99
=9900+99
=9999;
(6)19×122+78×19
=(122+78)×19
=200×19
=3800.