Exercise 1:

a)	0.583456 rounded off to two decimal places is
	0.583456 rounded off to three decimal places is
	0.583456 rounded off to one decimal place is
b)	11.28331 rounded off to two decimal places is
	11.28331 rounded off to three decimal places is
	11.28331 rounded off to one decimal place is
c)	0.08217 rounded off to two decimal places is
	0.08217 rounded off to three decimal places is
	0.08217 rounded off to one decimal place is
d)	121.325425 rounded off to two decimal places is
	121.325425 rounded off to three decimal places is
	121.325425 rounded off to one decimal place is
e)	43.8924 rounded off to two decimal places is
	43.8924 rounded off to three decimal places is
	43.8924 rounded off to one decimal place is
f)	87.23964 rounded off to two decimal places is
	87.23964 rounded off to three decimal places is
	87.23964 rounded off to one decimal place is
g)	1.001342 rounded off to two decimal places is
	1.001342 rounded off to three decimal places is
	1.001342 rounded off to one decimal place is
h)	527.6254 rounded off to two decimal places is
	527.6254 rounded off to three decimal places is
	527.6254 rounded off to one decimal place is
i)	5.4875 rounded off to two decimal places is
	5.4875 rounded off to three decimal places is
	5.4875 rounded off to one decimal place is
j)	1001.98342 rounded off to two decimal places is
	1001.98342 rounded off to three decimal places is
	1001.98342 rounded off to one decimal place is

Exercise 2:

a)	78.452896 rounded off to 5 significant figures is
	78.452896 rounded off to 4 significant figures is
	78.452896 rounded off to 2 significant figures is
	78.452896 rounded off to 3 significant figures is
b)	0.0845127 rounded off to 7 significant figures is
	0.0845127 rounded off to 4 significant figures is
	0.0845127 rounded off to 2 significant figures is
	0.0845127 rounded off to 3 significant figures is
c)	493.525136 rounded off to 7 significant figures is
	493.525136 rounded off to 4 significant figures is
	493.525136 rounded off to 5 significant figures is
	493.525136 rounded off to 3 significant figures is
d)	0.00189247 rounded off to 5 significant figures is
	0.00189247 rounded off to 4 significant figures is
	0.00189247 rounded off to 2 significant figures is
	0.00189247 rounded off to 3 significant figures is
e)	15.555999 rounded off to 5 significant figures is
	15.555999 rounded off to 4 significant figures is
	15.555999 rounded off to 2 significant figures is
	15.555999 rounded off to 3 significant figures is
f)	1.07383212 rounded off to 7 significant figures is
	1.07383212 rounded off to 4 significant figures is
	1.07383212 rounded off to 2 significant figures is
	1.07383212 rounded off to 3 significant figures is
g)	1028.44913 rounded off to 7 significant figures is
	1028.44913 rounded off to 4 significant figures is
	1028.44913 rounded off to 5 significant figures is
	1028.44913 rounded off to 6 significant figures is
h)	25.8838691 rounded off to 7 significant figures is
	25.8838691 rounded off to 4 significant figures is
	25.8838691 rounded off to 2 significant figures is
	25.8838691 rounded off to 3 significant figures is
i)	0.03764233 rounded off to 6 significant figures is
	0.03764233 rounded off to 4 significant figures is
	0.03764233 rounded off to 2 significant figures is
	0.03764233 rounded off to 3 significant figures is
j)	0.000581492 rounded off to 5 significant figures is
	0.000581492 rounded off to 4 significant figures is
	0.000581492 rounded off to 2 significant figures is
	0.000581492 rounded off to 3 significant figures is