Huh ... it is like a war outside my house right now. War of firecrackers :) My neighbors are going to celebrate CNY (i.e Chinese New Year) in just a couple of hours. Gong Xi Fa Cai to all my neighbors and to all who celebrate CNY.
Below I embedded my worksheet that I gave to my students last week. It is quite easy actually (if you use a scientific calculator). But they were not allowed to use the shortcut. They must know the basis. So the workings were a little bit long yet still ok.
Note: If you are interested to download the worksheet. Click on the small arrow on you upper right. Cheerio (^_^)