Canada Math Kangaroo Grade 3-4 in 2012
Canada Math Kangaroo Grade 3-4 in 2012
1. The year 2012 is a leap year, that means there are 29 days in February. On the 15th of March 2012, the ducklings of my grandfather are 20 days old. When did they hatch from their eggs?
Để tiếp tục học, xin mời đăng nhập hoặc đăng ký tài khoản.