Tolerance Notation

Which of the following is a symbol used to write tolerance notation?

•  $\pm$  

•  $\sqrt{ }$  

•  $\ne$  

•  $\approx$  

 $30\ \pm\ 5\ cm\$  is written using tolerance notation, what are the maximum and minimum values?

• 25cm 35cm

• 35cm 25cm

• 20cm 30cm

• 30cm 20cm

 $7\ \pm\ 0.2m$  means the item won't be rejected if

• The item has a length between 6.8m and 7.2m.

• The item has a length less than 6.8m.

• The item has a length more than 7.2m.

 $65\ \pm\ 45p$  Given the notation, tick all answers showing  the maximum and minimum prices of a chocolate bar?

• 20p 100p

• £0.20 £1.00

• 110p 20p

• £1.10 £0.20

 $8\ \pm\ 1.5cm$  are the diameter measurements that a machine is set to accept apples for sale. Which of the following apples will be rejected?  6cm, 9cm, 8.5cm, 10.1cm, 12cm, 9.4cm, 8cm

• 6cm 10.1cm 12cm

• 9cm 8.5cm 9.4cm 8cm

 $2\pm10\degree C$  shows the temperature in Sanquhar this winter. What was the coldest temperature and what was the warmest temperature? 

•  $-8\degree C\ 12\degree C$   

•  $8\degree C\ \ 12\degree C$  

•  $2\degree C\ 12\degree C$  

 $32\ \pm\ 2psi\$  is the pressure used for tyres on a car dependent on the weight being carried. What is the range of tyre pressures that are safe?

• 32- 36 psi

• 30-34 psi

• 28-32 psi

 $6\ \pm\ 0.5\ oz$  is the weight of flour needed to make pancakes depending on size of egg. which quantities of flour will work?  8.2oz, 6.1oz, 5.8oz, 7.2oz, 6.5oz

• 8.2oz 7.2oz 

• 6.1oz 5.8oz

• 6.1oz 5.8oz 6.5oz

• 8.2oz 7.2oz 6.50z

The amount of juice in a bottle is marked as being 300ml, it is acceptable if it is actually between 290ml and 310ml. How do we write this using tolerance notation?

• $290\ \pm\ 10ml$

• $300\ \pm\ 10ml$

• $310\ \pm\ 10ml$

Write a length of 26cm to 36cm in tolerance notation?

• $26\ \pm\ 10cm$

• $36\ \pm\ 10cm$

• $30\ \pm\ 6cm$

• $31\ \pm\ 5cm$