Write down the error interval for each of the following questions:Name: Date:

**Question 1:**The number of peas in a pack,

*n*, rounded to the nearest 100 is 400 peas. Write down the error interval for

*n*

**Question 2:**The speed of a car,

*j*, rounded to the nearest whole number is 16km/h. Write down the error interval for

*j*

**Question 3:**The weight of a suitcase,

*t*,

**truncated**to 1 decimal place is 16.4kg. Write down the error interval for the weight of the suitcase.

**Question 4:**A number,

*e*, rounded to 2 decimal places is 4.08. Write down the error interval for

*e*

**Question 5:**The length of a piece of string,

*q*, rounded to 1 decimal place is 37.4cm. Write down the error interval for the length

*q*

**Question 6:**The number of passengers on a coach,

*b*, rounded to the nearest 10 is 70 people. Write down the error interval for

*b*

**Question 7:**The weight of a crate,

*h*, correct to 2 significant figures is 620kg. Write down the error interval for

*h*

**Question 8:**A number,

*z*, correct to 3 significant figures is 7.06. Write down the error interval for

*z*

**Question 9:**The area of a plot of land,

*k*, correct to 1 significant figure is 500m

^{2}. Write down the error interval for

*k*

**Question 10:**The number of daily commuters travelling by train,

*w*, correct to 3 significant figures is 81,400. Write down the error interval for

*w*

**Question 11:**The average height of a Year 6 student,

*r*,

**truncated**to 2 decimal places is 144.39cm. Write down the error interval for the average height.

**Question 12:**The quantity of water in a bottle,

*b*, rounded to the nearest whole number is 794ml. Write down the error interval for

*b*

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# Answers

**Question 1:**350 ≤

*n*< 449

**Question 2:**15.5 ≤

*j*< 16.5

**Question 3:**16.4 ≤

*t*< 16.5

**Question 4:**4.075 ≤

*e*< 4.085

**Question 5:**37.35 ≤

*q*< 37.45

**Question 6:**65 ≤

*b*< 74

**Question 7:**615 ≤

*h*< 625

**Question 8:**7.055 ≤

*z*< 7.065

**Question 9:**450 ≤

*k*< 550

**Question 10:**81,350 ≤

*w*< 81,449

**Question 11:**144.39 ≤

*r*< 144.40

**Question 12:**793.5 ≤

*b*< 794.5

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