简便运算0.897+0.897+0.897×8
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 00:32:10
![简便运算0.897+0.897+0.897×8](/uploads/image/z/12558004-52-4.jpg?t=%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%970.897%2B0.897%2B0.897%C3%978)
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简便运算0.897+0.897+0.897×8
简便运算0.897+0.897+0.897×8
简便运算0.897+0.897+0.897×8
0.897+0.897+0.897×8
=0.897×(1+1+8)
=0.897×10
=8.97
0.897+0.897+0.897×8
=0.897x(1+1+8)
=8.97
0.897+0.897+0.897×8
=0.897×(1+1+8)
=0.897×10
=8.97
做题方法是提取公因式法
0.897+0.897+0.897×8
=0.897×1+0.897×1+0.897×8
=0.897×(1+1+8)
=0.897×10
=8.97
把一个0.897看作0.897×1,原式就得0.897×1+0.897×1+0.897×8,用乘法分配律提取公因数,最后得8.97