575×86+425×86怎样简便怎样算125×98×8100560÷14÷4
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发布时间:2024-10-14 11:42
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时间:2024-11-18 12:05
(1)425+14+186
=425+(14+186)
=425+200
=625;
(2)67+25+33+75
=67+33+(75+25)
=100+100
=200;
(3)103×12
=100×12+3×12
=1200+36
=1236;
(4)2000÷125÷8
=2000÷(125×8)
=2000÷1000
=2;
(5)250×13×4
=250×4×13
=1000×13
=13000;
(6)99×38+38
=(99+1)×38
=100×38
=3800.