2976+674-3259=309×7÷3=2163÷3=1527-4048÷8=418×6+3604=(582+6467)÷7=4180÷(119-115)=
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解:(1)2976+674-3259,
=3650-3259,
=391;
(2)309×7÷3,
=2163÷3,
=721;
(3)2163÷3,
=721;
(4)1527-4048÷8,
=1527-506,
=1021;
(5)418×6+3604,
=2508+3604,
=6112;
(6)(582+6467)÷7,
=7049÷7,
=1007;
(7)4180÷(119-115),
=4180÷4,
=1045.
解析分析:在解答上述问题时,要注意运算顺序,先算乘除再算加减,有括号的,要先算括号内的,再算括号外的.
点评:此题重点考查学生对整数四则混合运算顺序的掌握情况,以及运算能力.