题目内容
简算: 9000÷125÷8 | 0.125×5.6+×2.4. |
解:(1)9000÷125÷8,
=9000÷(125×8),
=9000÷1000,
=9;
(2)0.125×5.6+×2.4,
=0.125×5.6+0.125×2.4,
=0.125×(5.6+2.4),
=0.125×8,
=1.
分析:(1)运用除法的性质简算;
(2)把分数化为小数,运用乘法分配律简算.
点评:完成本题要注意分析式中数据,运用合适的简便方法计算.
=9000÷(125×8),
=9000÷1000,
=9;
(2)0.125×5.6+×2.4,
=0.125×5.6+0.125×2.4,
=0.125×(5.6+2.4),
=0.125×8,
=1.
分析:(1)运用除法的性质简算;
(2)把分数化为小数,运用乘法分配律简算.
点评:完成本题要注意分析式中数据,运用合适的简便方法计算.
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