3.2×4.6+5.2×0.35简便算法
答案:2 悬赏:20 手机版
解决时间 2021-02-22 22:09
- 提问者网友：王者佥
- 2021-02-22 14:34
3.2×4.6+5.2×0.35简便算法
最佳答案
- 五星知识达人网友：几近狂妄
- 2021-02-22 14:54
解: 3.2×4.6+5.2×0.35
=3.2×4.6+(3.2+2)×0.35
=3.2×4.6+3.2×0.35+2×0.35
=3.2×(4.6+0.35)+0.7
=3.2×4.95+0.7
=3.2×(5-0.05)+0.7
=16-0.16+0.7
=15.84+0.7
=16.54
=3.2×4.6+(3.2+2)×0.35
=3.2×4.6+3.2×0.35+2×0.35
=3.2×(4.6+0.35)+0.7
=3.2×4.95+0.7
=3.2×(5-0.05)+0.7
=16-0.16+0.7
=15.84+0.7
=16.54
全部回答
- 1楼网友：罪歌
- 2021-02-22 15:59
3.2×4.6+5.2×0.35简便算法
解：
直接算，没有简便
3.2×4.6+5.2×0.35
=14.72+1.82
=16.54追问有简便算法，有三步追答3.2×4.6+5.2×0.35
=3×4.6+0.2×4.6+5.2×0.5×0.7
=13.8+0.92+2.6×0.7
=14.72+1.82
=16.54
解：
直接算，没有简便
3.2×4.6+5.2×0.35
=14.72+1.82
=16.54追问有简便算法，有三步追答3.2×4.6+5.2×0.35
=3×4.6+0.2×4.6+5.2×0.5×0.7
=13.8+0.92+2.6×0.7
=14.72+1.82
=16.54
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