分析:(1)(7)根據(jù)連減的簡算方法計算即可;
(2)變形為125×8×8計算即可;
(3)根據(jù)連除的簡算方法計算即可;
(4)(5)(8)(11)根據(jù)乘法分配律簡便計算;
(6)(10)從左往右依次計算即可求解;
(9)根據(jù)加法交換律和結(jié)合律簡便計算.
解答:解:(1)528-89-128
=528-128-89
=400-89
=311;
(2)125×64
=125×8×8
=1000×8
=8000;
(3)3200÷25÷4
=3200÷(25×4)
=3200÷100
=32;
(4)39×23-23×19
=(39-19)×23
=20×23
=460;
(5)(125+7)×8
=125×8+7×8
=1000+56
=1056;
(6)3200÷25×4
=128×4
=512;
(7)162.2-(40+62.2)
=162.2-62.2-40
=100-40
=60;
(8)99×256+256
=(99+1)×256
=100×256
=25600;
(9)64+36-64+36
=(64-64)+(36+36)
=1+72
=72;
(10)10.75+0.4-9.86
=11.15-9.86
=1.29;
(11)9+4×(200-19)
=9+800-76
=908-76
=832.
點評:考查了運算定律與簡便運算,四則混合運算.注意運算順序和運算法則,靈活運用所學(xué)的運算律簡便計算.