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Write down the error interval for each of the following questions:
Question 1:     The weight of a suitcase, z, truncated to 1 decimal place is 13.8kg. Write down the error interval for the weight of the suitcase.
Question 2:     A number, n, rounded to the nearest whole number is 670. Write down the error interval for n
Question 3:     The weight of a pencil case, e, rounded to the nearest 100g is 700g. Write down the error interval for e
Question 4:     A number, x, rounded to the nearest whole number is 18. Write down the error interval for x
Question 5:     The volume of a box, c, correct to 1 significant figure is 10,000cm³. Write down the error interval for c
Question 6:     The length of a piece of string, v, rounded to 1 decimal place is 16.1cm. Write down the error interval for the length v
Question 7:     A number, m, truncated to 2 decimal places is 10.52. Write down the error interval for m
Question 8:     The number of pies in a factory, p, correct to 3 significant figures is 3,800 pies. Write down the error interval for p
Question 9:     The width of a box, n, rounded to the nearest 10mm is 70mm. Write down the error interval for n
Question 10:     The weight of a crate, b, correct to 2 significant figures is 690kg. Write down the error interval for b
Question 11:     A number, k, correct to 3 significant figures is 2.45. Write down the error interval for k
Question 12:     The length of a road, t, rounded to 2 decimal places is 19.16km. Write down the error interval for the length of the road.

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