分析:(1)運(yùn)用加法的交換律、結(jié)合律進(jìn)行簡(jiǎn)算;
(2)把101分解成100+1,再運(yùn)用乘法分配律簡(jiǎn)算;
(3)運(yùn)用除法的性質(zhì)進(jìn)行簡(jiǎn)算;
(4)運(yùn)用減法的性質(zhì)進(jìn)行簡(jiǎn)算;
(5)先算減法,再算加法;
(6)運(yùn)用乘法分配律進(jìn)行簡(jiǎn)算.
解答:解:(1)4+0.8+2.6+9.2
=(4+2.6)+(0.8+9.2)
=6.6+10
=16.6;
(2)101×78
=(100+1)×78
=100×78+1×78
=7800+78
=7878;
(3)4500÷4÷25
=4500÷(4×25)
=4500÷100
=45;
(4)53-8.37-1.63
=53-(8.37+1.63)
=53-10
=43;
(5)15.64+18.2-5.64
=15.64-5.64+18.2
=10+18.2
=28.2;
(6)19×44+19×56
=19×(44+56)
=19×100
=1900.
點(diǎn)評(píng):考查了整數(shù)四則混合運(yùn)算的順序,靈活運(yùn)用運(yùn)算定律進(jìn)行簡(jiǎn)算.