4.2×6.1+13.6×1.3简便运算
答案:2 悬赏:10 手机版
解决时间 2021-01-27 23:00
- 提问者网友:川水往事
- 2021-01-27 11:45
4.2×6.1+13.6×1.3简便运算
最佳答案
- 五星知识达人网友:往事埋风中
- 2021-01-27 12:10
4.2×6.1+13.6×1.3
=4.2×6.1+4.2×3×1.3
=4.2×(6.1+3×1.3)
=4.2×10
=42
=4.2×6.1+4.2×3×1.3
=4.2×(6.1+3×1.3)
=4.2×10
=42
全部回答
- 1楼网友:七十二街
- 2021-01-27 13:20
解:4.2×6.1+13.6×1.3
=2×2.1×6.1+2×6.8×1.3
=2×(12.81+8.84)
=2×21.65
=43.3.
=2×2.1×6.1+2×6.8×1.3
=2×(12.81+8.84)
=2×21.65
=43.3.
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