将小数2.020化简后是( )
70里有几个10?( )A.6 B.7 C.8
20×3的结果是( )A.30 B.50 C.60
10×8的结果是( )A.80 B.100 C.60
10×6的结果是( )A.80 B.100 C.60
40+60的结果是( )A.80 B.100 C.60