题目内容
脱式计算.
| 824÷4×3 | (601-246)÷5 | 201+232-365 | 82×(434÷7) | 703-26×25. |
分析:(1)(3)按照从左到右的顺序计算;
(2)先算小括号里面的减法,再算括号外的除法;
(4)先算小括号里面的除法,再算括号外的乘法;
(5)先算乘法,再算减法.
(2)先算小括号里面的减法,再算括号外的除法;
(4)先算小括号里面的除法,再算括号外的乘法;
(5)先算乘法,再算减法.
解答:解:(1)824÷4×3,
=206×3,
=618;
(2)(601-246)÷5,
=355÷5,
=71;
(3)201+232-365,
=433-365,
=68;
(4)82×(434÷7),
=82×62,
=5084;
(5)703-26×25,
=703-650,
=53.
=206×3,
=618;
(2)(601-246)÷5,
=355÷5,
=71;
(3)201+232-365,
=433-365,
=68;
(4)82×(434÷7),
=82×62,
=5084;
(5)703-26×25,
=703-650,
=53.
点评:本题考查了简单的四则混合运算,关键是理清楚运算的顺序,然后根据运算顺序逐步求解即可.
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