4.6×0.8+0.2×7.6简便计算过程
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解决时间 2021-04-01 14:24
- 提问者网友:欺烟
- 2021-03-31 13:57
4.6×0.8+0.2×7.6简便计算过程
最佳答案
- 五星知识达人网友:笑迎怀羞
- 2021-03-31 14:31
4.6×0.8+0.2×7.6
=4.6×0.8+0.2×4x1.9
=0.8x(4.6+1.9)
=0.4x2x6.5
=0.4x13
=5.2
谢谢,请采纳
=4.6×0.8+0.2×4x1.9
=0.8x(4.6+1.9)
=0.4x2x6.5
=0.4x13
=5.2
谢谢,请采纳
全部回答
- 1楼网友:大漠
- 2021-03-31 18:35
4*0.8+0.6*0.8+7*0.2+0.6*0.2
=4*0.8+4*0.2+3*0.2+0.6*(0.8*0.2)
=4+0.6+0.6
=4*0.8+4*0.2+3*0.2+0.6*(0.8*0.2)
=4+0.6+0.6
- 2楼网友:撞了怀
- 2021-03-31 17:42
(5-0.4)x0.8+0.2(8-0.4)
=4-0.32+1.6-0.08
=4-0.4+1.6
=5.2
=4-0.32+1.6-0.08
=4-0.4+1.6
=5.2
- 3楼网友:思契十里
- 2021-03-31 16:24
解:原式=4.6x0.8+0.8x1.9
=0.8x(4.6+1.9)
=0.8x6.5
=5.2
分析:主要考查拆分法和提取公因式的简便方法。
=0.8x(4.6+1.9)
=0.8x6.5
=5.2
分析:主要考查拆分法和提取公因式的简便方法。
- 4楼网友:怀裏藏嬌
- 2021-03-31 15:04
4.6×0.8+0.2×7.6
=4.6×0.8+0.2×4.6 + 0.2x3
=4.6x(0.8+0.2) +0.6
=4.6x1 +0.6
=4.6+0.6
=5.2
=4.6×0.8+0.2×4.6 + 0.2x3
=4.6x(0.8+0.2) +0.6
=4.6x1 +0.6
=4.6+0.6
=5.2
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