Total 9 Questions (Please login to see all questions)

1. An elephant weighs as much as 300 rocks that weigh 30 jin each. How much does the elephant weigh?
2. There are 21.5 million people in Beijing. New York City has 8.5 million people. How many more people live in Beijing than in New York City?
3. Cao Chong was born in 196 AD. He died in 208 AD. About how old was Chong when he died?