题目内容
| 能简算的就简算 2.33×0.5×4 |
9.9×10.1 |
分析:(1)根据乘法结合律进行简算;
(2)10.1=10+0.1,然后再根据乘法分配律进行简算.
(2)10.1=10+0.1,然后再根据乘法分配律进行简算.
解答:解:
(1)2.33×0.5×4,
=2.33×(0.5×4),
=2.33×2,
=4.66;
(2)9.9×10.1,
=9.9×(10+0.1),
=9.9×10+9.9×0.1,
=99+0.99,
=99.99.
(1)2.33×0.5×4,
=2.33×(0.5×4),
=2.33×2,
=4.66;
(2)9.9×10.1,
=9.9×(10+0.1),
=9.9×10+9.9×0.1,
=99+0.99,
=99.99.
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.
练习册系列答案
相关题目