题目内容
(2012?广元模拟)
×1.67+0.33×
999×667+667.
| 3 |
| 8 |
| 3 |
| 8 |
分析:(1)运用乘法分配律解答,
(2)化667=667×1,再运用乘法分配律解答.
(2)化667=667×1,再运用乘法分配律解答.
解答:解:(1)
×1.67+0.33×
,
=
×(1.67+0.33),
=
×2,
=
;
(2)999×667+667×1,
=667×(999+1),
=667×1000,
=667000.
| 3 |
| 8 |
| 3 |
| 8 |
=
| 3 |
| 8 |
=
| 3 |
| 8 |
=
| 3 |
| 4 |
(2)999×667+667×1,
=667×(999+1),
=667×1000,
=667000.
点评:本题主要考查学生运用乘法分配律解决问题的能力.
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