由四舍五入法得到的近似数0.05010的有效数字的个数有____
问题描述:
由四舍五入法得到的近似数0.05010的有效数字的个数有____
答
3个
答
由四舍五入法得到的近似数0.05010的有效数字的个数有4个,
5,0,1,0
答
0.050095,0.050096,0.050097,0.050098,0.050099,0.050100,0.050101,0.050102,0.050103,0.050104,
由四舍五入法得到的近似数0.05010的有效数字的个数有10
答
5个
答
4个
有效数字是指从左边第一个不为0的数字开始到末尾数字