请问这条题目可以用简便算法吗 10.9-3.74+0.9
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/18 03:56:08
请问这条题目可以用简便算法吗 10.9-3.74+0.9
![请问这条题目可以用简便算法吗 10.9-3.74+0.9](/uploads/image/z/6791379-51-9.jpg?t=%E8%AF%B7%E9%97%AE%E8%BF%99%E6%9D%A1%E9%A2%98%E7%9B%AE%E5%8F%AF%E4%BB%A5%E7%94%A8%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%E5%90%97+10.9-3.74%2B0.9)
10.9-3.74+0.9
=10.9+0.9-3.74
=10+0.9+0.9-(10-6.26)
=10+1.8-10+6.26
=1.8+6.26
=8.06
=10.9+0.9-3.74
=10+0.9+0.9-(10-6.26)
=10+1.8-10+6.26
=1.8+6.26
=8.06