脱式计算.
(540-370)×6 33×8÷6 745+625÷5 728-120×3.
解:(1)(540-370)×6,
=170×6,
=1020;
(2)33×8÷6,
=264÷6,
=44;
(3)745+625÷5,
=745+125,
=870;
(4)728-120×3,
=728-360,
=368.
分析:(1)先算小括号里的减法,再算括号外的乘法,
(2)先算乘法,再算除法,
(3)先算除法,再算加法,
(4)先算乘法,再算减法.
点评:此题考查了整数四则混合运算的运算顺序.