A.50
B.50.3
C.50.0
D.50.5
[单选题]将50.28修约到个数位的0.5单位,得()。A.50B.50.3C.50.0D.50.5
[单选题]将50.28修约到个数位的0.5单位,得()。A.50B.50.3C.50.0D.50.5
[判断题] 将832修约到“百”数位的0.2单位,得840。()A . 正确B . 错误
[判断题]将830修约到“百”数位的0.2单位,得820。()A.对B.错
[判断题]将830修约到"百"数位的0.2单位,得820。()A.对B.错
[判断题]将830修约到"百"数位的0.2单位,得820。()A.对B.错
[填空题] 将60.28修约到个数位的0.5单位得到(),0.0032的有效位数为()。
[单选题]下列数字修约到“个”数位的0.5单位对的一组是( )。A.26.16→26.0,32.25→32.5B.14.38→14.0,30.75→30.5C.
[单选题]将60.38修约到个位的0.5单位()。A . 60.0B . 60.5C . 60.1D . 61.0
[单选题]将1265修约到百位,得()A.13×102B.126×10C.127×10D.12.65×l02