GCSE Maths | Bounds

Question 1

Question 2

Question 3

1. A measurement is given as 135 to the nearest 5.
   What are the upper and lower bounds?
2. A length is recorded as 250 to the nearest 50.
   What are the upper and lower bounds?
3. A distance is written as 415 to the nearest 5.
   Find the bounds of the actual distance.
4. A number is rounded to 150 to the nearest 50.
   What are the possible maximum and minimum values?
5. A student measures a height as 90 cm to the nearest 5 cm.
   Give the range of possible actual values.
6. A road sign says the distance is 600 m to the nearest 50 m.
   Give the lower and upper bounds.
7. A car’s speed is recorded as 85 mph to the nearest 5 mph.
   What is the range of possible actual speeds?
8. The cost of a meal is 275 pence to the nearest 5p.
   What are the bounds?
9. The weight of a parcel is 500 g to the nearest 50 g.
   What are the upper and lower bounds?
10. A plank is measured to be 325 cm to the nearest 5 cm.
    Give the possible range of its actual length.