1) A ball of string has a length of 13 m to the nearest metre.

a) What is the lower and upper bound for the length of the string?

b) Write out the error interval with

2) 29,000 people attend a football match to the nearest thousand.

a) What is the lower and upper bound for the number of people attending the football match?

b) Write out the error interval with

3) I am 180 cm to the nearest 10 cm. What is the lower and upper bound for my height?

4) A number that has been rounded to 1 decimal place is 23.7. Write down the error interval with the letter

5) A number that has been rounded to 3 significant figures is 6,730. What is the upper and lower bound for this number?

6) My rug has a length of 175 cm to the nearest 5 cm. What is the minimum and maximum length of the rug?

7) The café at a football game sells 8,750 cups of tea to the nearest 50 cups. What is the error interval for the number of cups of tea that they sell? Let

8) Jeremy is 1.65 m to the nearest 5 cm. What is the minimum and maximum height of Jeremy? Give your answer in metres.

a) What is the lower and upper bound for the length of the string?

b) Write out the error interval with

*l*as the length of the string.2) 29,000 people attend a football match to the nearest thousand.

a) What is the lower and upper bound for the number of people attending the football match?

b) Write out the error interval with

*a*as the attendance for the football match.3) I am 180 cm to the nearest 10 cm. What is the lower and upper bound for my height?

4) A number that has been rounded to 1 decimal place is 23.7. Write down the error interval with the letter

*n*representing the number.5) A number that has been rounded to 3 significant figures is 6,730. What is the upper and lower bound for this number?

6) My rug has a length of 175 cm to the nearest 5 cm. What is the minimum and maximum length of the rug?

7) The café at a football game sells 8,750 cups of tea to the nearest 50 cups. What is the error interval for the number of cups of tea that they sell? Let

*c*represent the number of cups of tea.8) Jeremy is 1.65 m to the nearest 5 cm. What is the minimum and maximum height of Jeremy? Give your answer in metres.