60×□<492,□里最大能填( )A.7 B.8 C.9
40+60的结果是( )A.80 B.100 C.60
20+70的结果是( )A.40 B.90 C.60
40+30的结果是( )A.70 B.50 C.60
30+30的结果是( )A.40 B.50 C.60
10+30的结果是( )A.40 B.50 C.60