4/9×3+2/9×2+1/9×2用简便计算
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解决时间 2021-03-23 10:46
- 提问者网友：十年饮冰
- 2021-03-22 22:51
4/9×3+2/9×2+1/9×2用简便计算
最佳答案
- 五星知识达人网友：神也偏爱
- 2021-03-22 23:40
解: 4/9×3+2/9×2+1/9×2
=2/9*(2*3+2+1)
=2/9*(6+3)
=2/9 *9
=2
=2/9*(2*3+2+1)
=2/9*(6+3)
=2/9 *9
=2
全部回答
- 1楼网友：人间朝暮
- 2021-03-23 01:03
4/9×3+2/9×2+1/9×2
=1/9×4×3+1/9×2×2+1/9×2
=1/9×（12+4+2）
=1/9×18
=2
=1/9×4×3+1/9×2×2+1/9×2
=1/9×（12+4+2）
=1/9×18
=2
- 2楼网友：骨子里都是戏
- 2021-03-23 00:15
=4/9×3+2/9×2+2/9×1
=4/9×3+2/9×(2+1)
=4/9×3+2/9×3
=3×(4/9+2/9)
=3×2/3
=2
=4/9×3+2/9×(2+1)
=4/9×3+2/9×3
=3×(4/9+2/9)
=3×2/3
=2
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