题目内容
脱式计算. 1200-125×8 |
25×24+125 | (6.5-2.5)×16 | (360+40)÷5. |
分析:本题根据四则混合运算的运算顺序计算即可:先算乘除,再算加减,有括号的要先算括号里面的.
算式(2)可将24拆分为4×6后再进行计算.
算式(2)可将24拆分为4×6后再进行计算.
解答:解:(1)1200-125×8
=1200-1000,
=200;
(2)25×24+125
=25×4×6+125,
=100×6+125,
=600+125,
=725;
(3)(6.5-2.5)×16
=4×16,
=64;
(4)(360+40)÷5
=400÷5,
=80.
=1200-1000,
=200;
(2)25×24+125
=25×4×6+125,
=100×6+125,
=600+125,
=725;
(3)(6.5-2.5)×16
=4×16,
=64;
(4)(360+40)÷5
=400÷5,
=80.
点评:本题考查的主要知识点为:四则混合运算的运算顺序.
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