题目内容

脱式计算
(187-57)×2     
(62+38)÷4      (34+19)×7       
14×125+32 (29+24)×53     (57-28)×32    
(61+23)×13       1082+92×15
分析:(1)(2)(3)(5)(6)(7)按照先算括号里面的,再算括号外面的顺序即可解答,
(4)(8)按照先算乘法,再算加法的顺序即可解答.
解答:解:(1)(187-57)×2,
=130×2,
=260;

(2)(62+38)÷4,
=100÷4,
=25;

(3)(34+19)×7,
=53×7,
=371;

(4)14×125+32,
=1750+32,
=1782;

(5)(29+24)×53,
=53×53,
=2809;
    
(6)(57-28)×32,
=29×32,
=928;

(7)(61+23)×13,
=84×13,
=1092;

(8)1082+92×15,
=1082+1380,
=2462.
点评:正确按照四则运算顺序进行计算,以及计算结果要准确是本题考查知识点.
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