Name:                                    Date:

Write down the error interval for each of the following questions:
Question 1:     The speed of a car, q, rounded to the nearest whole number is 22km/h. Write down the error interval for q
Question 2:     The weight of a pencil case, g, rounded to the nearest 100g is 200g. Write down the error interval for g
Question 3:     The number of daily commuters travelling by train, y, correct to 3 significant figures is 45,200. Write down the error interval for y
Question 4:     A number, c, rounded to 2 decimal places is 18.56. Write down the error interval for c
Question 5:     A number, u, rounded to the nearest whole number is 510. Write down the error interval for u
Question 6:     A number, p, truncated to 1 decimal place is 13.4. Write down the error interval for p
Question 7:     A number, h, correct to 3 significant figures is 31.9. Write down the error interval for h
Question 8:     The length of a piece of string, r, rounded to 1 decimal place is 15.5cm. Write down the error interval for the length r
Question 9:     The density of an alloy, w, correct to 2 significant figures is 8.7g/cm³. Write down the error interval for w
Question 10:     The area of a plot of land, j, correct to 1 significant figure is 500m². Write down the error interval for j
Question 11:     A number, z, truncated to 2 decimal places is 14.58. Write down the error interval for z
Question 12:     The number of passengers on a coach, u, rounded to the nearest 10 is 50 people. Write down the error interval for u

© GCSEMathsWorksheets.com