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Write down the error interval for each of the following questions:
Question 1:     The weight of a suitcase, b, truncated to 1 decimal place is 9.8kg. Write down the error interval for the weight of the suitcase.
Question 2:     A number, m, rounded to the nearest whole number is 83. Write down the error interval for m
Question 3:     A number, w, rounded to the nearest whole number is 528. Write down the error interval for w
Question 4:     A number, t, correct to 3 significant figures is 48.5. Write down the error interval for t
Question 5:     The length of a road, v, rounded to 2 decimal places is 11.96km. Write down the error interval for the length of the road.
Question 6:     The density of an alloy, g, correct to 2 significant figures is 8.3g/cm³. Write down the error interval for g
Question 7:     The weight of a pencil case, h, rounded to the nearest 100g is 200g. Write down the error interval for h
Question 8:     The number of passengers on a coach, w, rounded to the nearest 10 is 50 people. Write down the error interval for w
Question 9:     The average height of a Year 6 student, z, truncated to 2 decimal places is 144.43cm. Write down the error interval for the average height.
Question 10:     The area of a plot of land, c, correct to 1 significant figure is 50,000m². Write down the error interval for c
Question 11:     The number of daily commuters travelling by train, k, correct to 3 significant figures is 45,400. Write down the error interval for k
Question 12:     The length of a piece of string, x, rounded to 1 decimal place is 60.5cm. Write down the error interval for the length x

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