Only do questions 1  12 below if you have already done the unit on significant figures.

(1) 
Write 50 000 to show that the 1's place was the estimated measurement. 


(2) 
Write 76 000 000 to show that the 1000's place was the estimated measurement. 


(3) 
Write 3000 to show that the 100's place was the estimated measurement. 


(4) 
Write 400 000 000 to show that the 10 000's place was the estimated measurement. 


(5) 
Write 22 000 to show that the estimated measurement was in the 100's place. 


(6) 
Write 120 000 to show that the estimated measurement was in the 1000's place. 


(7) 
Write 0.00003000 to show 2 significant figures. 


(8) 
Write 0.0000082092 to show 3 significant figures. 


(9) 
Write 0.000000002810 to show 4 significant figures. 


(10) 
Write 0.00405123 to show 3 significant figures. 


(11) 
Write 345.68 x 10^{3} to show 2 significant figures. 


(12) 
Write 9323.0 x 10^{8} to show 3 significant figures. 


Convert the following to numbers to their decimal equavilent. Example 1x10^{2} = 100 
(13) 
3.45 x 10^{4} 


(14) 
4.090x 10^{3} 


(15) 
6.9281 x 10^{2} 


(16) 
9.39 x 10^{ –6} 

