问题
解答题
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答案
(1)329×101,
=329×(100+1),
=329×100+329×1,
=32900+329,
=33229;
(2)54×98+46×98,
=(54+46)×98,
=100×98,
=9800;
(3)3000÷125,
=(3000×8)÷(125×8),
=24000÷1000,
=24;
(4)800÷25,
=(800×4)÷(25×4),
=3200÷100,
=32;
(5)(125×25)×8,
=125×8×25,
=1000×25,
=25000;
(6)57×15+42×15+15,
=(57+42+1)×15,
=100×15,
=1500.