Calculate the upper and lower bounds for each of the following questions:Name: Date:

**Question 1:**2.0g rounded to 2 significant figures.

**Question 2:**17.59km rounded to 2 decimal places.

**Question 3:**4.02cl correct to 3 significant figures.

**Question 4:**75kg rounded to the nearest 5kg

**Question 5:**9.3cm rounded to 1 decimal place.

**Question 6:**300g rounded to the nearest 100g.

**Question 7:**37km/h rounded to the nearest whole number.

**Question 8:**840kg correct to 2 significant figures.

**Question 9:**190cl rounded to the nearest 5cl

**Question 10:**1.00cm rounded to 2 decimal places.

**Question 11:**980,000m rounded to 2 significant figures.

**Question 12:**300m

^{2}correct to 1 significant figure.

**Question 13:**80mm rounded to the nearest 10mm.

**Question 14:**540,000L rounded to 3 significant figures.

**Question 15:**141ml rounded to the nearest whole number.

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# Answers

**Question 1:**lower bound = 1.95g, upper bound = 2.05g

**Question 2:**lower bound = 17.585km, upper bound = 17.595km

**Question 3:**lower bound = 4.015cl, upper bound = 4.025cl

**Question 4:**lower bound = 72.5kg, upper bound = 77.5kg

**Question 5:**lower bound = 9.25cm, upper bound = 9.35cm

**Question 6:**lower bound = 250g, upper bound = 350g

**Question 7:**lower bound = 36.5km/h, upper bound = 37.5km/h

**Question 8:**lower bound = 835kg, upper bound = 845kg

**Question 9:**lower bound = 187.5cl, upper bound = 192.5cl

**Question 10:**lower bound = 0.995cm, upper bound = 1.005cm

**Question 11:**lower bound = 975,000m, upper bound = 985,000m

**Question 12:**lower bound = 250m

^{2}, upper bound = 350m

^{2}

**Question 13:**lower bound = 75mm, upper bound = 85mm

**Question 14:**lower bound = 539,500L, upper bound = 540,500L

**Question 15:**lower bound = 140.5ml, upper bound = 141.5ml

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