1.2×3.8 2.4×1.9 4.8×0.6该怎么简算
答案:2 悬赏:40 手机版
解决时间 2021-02-14 14:30
- 提问者网友：鐵馬踏冰河
- 2021-02-13 19:22
1.2×3.8 2.4×1.9 4.8×0.6该怎么简算
最佳答案
- 五星知识达人网友：十年萤火照君眠
- 2021-02-13 19:33
1.2×3.8+2.4×1.9+4.8×0.6
=1.2×3.8+1.2×2×1.9+1.2×4×0.6
=1.2×3.8+1.2×3.8+1.2×2.4
=1.2×(3.8+3.8+2.4)
=1.2×10
=12
=1.2×3.8+1.2×2×1.9+1.2×4×0.6
=1.2×3.8+1.2×3.8+1.2×2.4
=1.2×(3.8+3.8+2.4)
=1.2×10
=12
全部回答
- 1楼网友：夜风逐马
- 2021-02-13 20:42
1.2×3.8+2.4×1.9+4.8×0.6
=1.2×2×1.9+2.4×1.9+4.8×0.6
=2.4×1.9+2.4×1.9+4.8×0.6
=4.8×1.9+4.8×0.6
=4.8×2.5
=1.2×4×2.5
=1.2×10
=12.
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