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65×0.12+3.78     3.04×1.5-0.56    
52-1.6×2.4 8+1.5×0.4    
0.45×1.3×0.2     2.4×10.5
3.64×1.5+1.5×0.36     0.14×(6.45-0.37)
分析:(1)(4)先算乘法,再算加法;
(2)(3)先算乘法,再算减法;
(5)利用乘法交换律简算;
(6)(7)利用乘法分配律简算;
(8)先算减法,再算乘法.
解答:解:(1)65×0.12+3.78
=7.8+3.78
=11.58;

(2)3.04×1.5-0.56    
=4.56-0.56
=4;

(3)52-1.6×2.4
=52-3.84
=48.16;

(4)8+1.5×0.4  
=8+0.6
=8.6;

(5)0.45×1.3×0.2
=0.45×0.2×1.3
=0.09×1.3
=0.117;

(6)2.4×10.5
=2.4×10+2.4×0.5
=24+1.2
=25.2;

(7)3.64×1.5+1.5×0.36
=(3.64+0.36)×1.5
=4×1.5
=6;

(8)0.14×(6.45-0.37)
=0.14×6.08
=0.8512.
点评:混合运算注意运算顺序,抓住数字特点与运算符号,选用适当的运算定律简算.
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