Try solving this with the 1-step standard algorithm.  We are working to solve problems as efficiently as we can, while at the same time being accurate.

Have fun and learn some fun facts about the countries we are researching along the way.

 

Tera discovered there are 126,372,364 people living in Japan.  Samantha found out there were 68,377,173 people living in Thailand.  How many people did they find when they added the populations together?

Katie learned that the Sydney Opera House was built in three sections.  It was started in 1959 and was finished in 1973.  How many years did it take for the Sydney Opera House to be built?  How many years ago was it finished?

Lucy found out the the Great Wall of China is 13,171 miles long.  The United States is 2,802 miles across from Florida to Washington state.  How much longer is the Great Wall of China than the United States?