(1)3600-800÷40×35
(2)64-15.8-14.2
(3)

(4)

(5)

(6)38÷[2.5×(4.36+3.64)].解:(1)3600-800÷40×35,
=3600-20×35,
=3600-700,
=2900;
(2)64-15.8-14.2,
=64-(15.8+14.2),
=64-30,
=34;
(3)
,=(40-27)×
,=13×
,=9;
(4)
,=
×36-
×36+
×36,=15-6+14,
=9+14,
=23;
(5)
,=(18-5+1)×
,=14×
,=9;
(6)38÷[2.5×(4.36+3.64)],
=38÷[2.5×8],
=38÷20,
=1.9.
分析:(1)先算除法,再算乘法,最后算减法;
(2)根据连续减去两个数,等于减去这两个数的和简算;
(3)先算小括号里面的乘法,再算小括号里面的减法,最后算括号外的乘法;
(4)(5)运用乘法分配律简算;
(6)先算小括号里面的加法,再算中括号里面的乘法,最后算括号外的除法.
点评:本题考查了四则混合运算,注意运算顺序和运算法则,灵活运用所学的运算定律进行简便计算.