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Write down the error interval for each of the following questions:
Question 1:     A number, m, rounded to the nearest whole number is 67. Write down the error interval for m
Question 2:     A number, s, rounded to 2 decimal places is 12.23. Write down the error interval for s
Question 3:     A number, v, truncated to 2 decimal places is 5.52. Write down the error interval for v
Question 4:     The quantity of water in a bottle, r, rounded to the nearest whole number is 570ml. Write down the error interval for r
Question 5:     The length of a piece of string, y, rounded to 1 decimal place is 40.8cm. Write down the error interval for the length y
Question 6:     A number, f, correct to 3 significant figures is 1.60. Write down the error interval for f
Question 7:     The volume of a box, j, correct to 1 significant figure is 80cm³. Write down the error interval for j
Question 8:     The density of an alloy, k, correct to 2 significant figures is 5.9g/cm³. Write down the error interval for k
Question 9:     A number, p, truncated to 1 decimal place is 2.9. Write down the error interval for p
Question 10:     The number of daily commuters travelling by train, h, correct to 3 significant figures is 81,300. Write down the error interval for h
Question 11:     The width of a box, r, rounded to the nearest 10mm is 90mm. Write down the error interval for r
Question 12:     The weight of a pencil case, d, rounded to the nearest 100g is 800g. Write down the error interval for d

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