问题
解答题
能简算就简算
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答案
(1)2000÷125÷8,
=2000÷(125×8),
=2000÷1000,
=2;
(2)800-138-162,
=800-(138+162),
=800-300,
=500;
(3)99×38+38,
=(99+1)×38,
=100×38,
=3800;
(4)25×33×4,
=25×4×33,
=100×33,
=3300;
(5)(125+70)×8,
=125×8+70×8,
=1000+560,
=1560;
(6)101×87,
=(100+1)×87,
=100×87+1×87,
=8700+87,
=8787;
(7)312×4+188×4,
=(312+188)×4,
=500×4,
=2000;
(8)28×225-2×225-6×225,
=(28-2-6)×225,
=20×225,
=4500.