Significant Figures- Aug 28th

Today we learned a little bit about significant figures! We learned how to identify what sig figs are, and the rules needed for when it becomes more difficult to figure out what the sig figs are! For Example: 0.00700 there would be 3 significant figures. Then we learned multiplying and dividing with sig figs. For Example: 1.69m times 2.09m= 3.5321m squared. However, for multiplying and dividing you change it to 3.53m squared. Then we learned add/sub. It is similar to mul/div however you change the answer in a different way. For Example: 1.26+2.3=3.56 due to 2.3, you would change the answer to 3.6. Thanks to the stuttering talking man we learned sig figs today! :) Homework: 2.) A. 4 sig figs B. 2 sig figs C. 6 sig figs 3.)2.7 4.) A. 53.88g B. 77m C. 3.159 (I am unclear on what the units would be!)