(1)10÷8+3.96×12.5%+2.04×
(2)6000-105×36
(3)85-84
÷7 (4)

(5)
.解:(1)10÷8+3.96×12.5%+2.04×
=1.25+3.96×12.5%+2.04×0.125,
=0.125×10+3.96×0.125+2.04×0.125,
=(10+3.96+2.04)×0.125,
=16×0.125,
=2;
(2)6000-105×36
=6000-(100+5)×36,
=6000-100×36-36×5,
=6000-3600-180,
=2220;
(3)85-84
÷7=85-(84+
)÷7,=85-84÷7-
7,=85-12-
,=72
;(4)

=
÷[
+
],=
÷[
+
],=
×
,=
;(5)

=1
×3.6+3.6×7
+3.6,=(1
+7
+1)×3.6,=10×3.6,
=36.
分析:(1)据乘法算式的性质将原式变为0.125×10+3.96×12.5%+2.04×0.125后再据分配律进行简便运算;
(2)根据分配律将105×36变为(100+5)×36再据减法性质进行计算;
(3)可先据分配律将式中84
÷7拆分为(84+
)÷7再据减法性质进行简便计算;(4)可将括号中的算式据分配律进行简便计算;
(5)将据分配律进行简便计算.
点评:完成此类题目要认真分析式中据,根据式中数据的特点及内在联系选择合适的方法进行简便计算.