题目内容
脱式计算.
385+512÷64 | 736÷32×28 | 650÷(13×5) | 1000-918÷18. |
分析:(1)先算除法,再算加法;
(2)从左向右进行计算即可;
(3)先算小括号里的乘法,再算括号外的除法;
(4)先算除法,再算减法.
(2)从左向右进行计算即可;
(3)先算小括号里的乘法,再算括号外的除法;
(4)先算除法,再算减法.
解答:解:(1)385+512÷64,
=385+8,
=393;
(2)736÷32×28,
=23×28,
=644;
(3)650÷(13×5),
=650÷65,
=10;
(4)1000-918÷18,
=1000-51,
=949.
=385+8,
=393;
(2)736÷32×28,
=23×28,
=644;
(3)650÷(13×5),
=650÷65,
=10;
(4)1000-918÷18,
=1000-51,
=949.
点评:考查了整数四则混合运算的顺序,有括号的要先算括号里的运算.
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