7.2×4.12+4.12×1.6+8.8×0.88巧算
答案:4 悬赏:40 手机版
解决时间 2021-02-22 00:10
- 提问者网友：最爱你的唇
- 2021-02-21 10:44
7.2×4.12+4.12×1.6+8.8×0.88巧算
最佳答案
- 五星知识达人网友：罪歌
- 2021-02-21 11:21
7.2×4.12+4.12×1.6+8.8×0.88
=（7.2+1.6）x4.12+8.8x0.88
=8.8x4.12+8.8x0.88
=8.8x(4.12+0.88)
=8.8x5
=44
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=（7.2+1.6）x4.12+8.8x0.88
=8.8x4.12+8.8x0.88
=8.8x(4.12+0.88)
=8.8x5
=44
行家正解，不明白可以追问！祝您学习进步
满意请点击下面的【选为满意回答】按钮，O(∩_∩)O谢谢
全部回答
- 1楼网友：佘樂
- 2021-02-21 14:03
这题考察的是乘法分配率
7.2×4.12+4.12×1.6+8.8×0.88
=4.12x（7.2+1.6）+8.8x0.88
=4.12x8.8+8.8x0.88
=8.8x(4.12+0.88)
=8.8x5
44
7.2×4.12+4.12×1.6+8.8×0.88
=4.12x（7.2+1.6）+8.8x0.88
=4.12x8.8+8.8x0.88
=8.8x(4.12+0.88)
=8.8x5
44
- 2楼网友：酒醒三更
- 2021-02-21 13:02
7.2×4.12+4.12×1.6+8.8×0.88
=4.12*（7.2+1.6）+8.8×0.88
=4.12*8.8+8.8×0.88
=8.8*(4.12+0.88)
=8.8*5
=44
=4.12*（7.2+1.6）+8.8×0.88
=4.12*8.8+8.8×0.88
=8.8*(4.12+0.88)
=8.8*5
=44
- 3楼网友：行路难
- 2021-02-21 11:42
7.2×4.12+4.12×1.6+8.8×0.88
=（7.2+1.6）×4.12+8.8×0.88
=8.8×4.12+8.8×0.88
=8.8×（4.12+0.88）
=8.8×5
=44
=（7.2+1.6）×4.12+8.8×0.88
=8.8×4.12+8.8×0.88
=8.8×（4.12+0.88）
=8.8×5
=44
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