Upper and lower bounds

The weight of a potatoes is 25 kg correct to the nearest kG /write down the smallest possible weight of the of bag /and also in largest

• 
  smallest25.5/largest26.5

• 
  smallest23.6/largest29.5

• smallest24.5/largest25.5kg

• 
  smallest24.5/largest26.5

find the upper and lower bounds in each case 305 (nearest 5)

• 
  300≤305<310

• 
  

  302.5≤305<307.5

• 303.5≤305<306.5

• 301.5≤305<309.5

Find the upper and lower bounds in each case 700(nearst100)

• 
  650≤700<750

• 
  600≤700<800

• 
  625≤700<825

• 
  660≤700<760

What is the upper bound and lower bound of 390 grams, measured to the nearest 10 grams?

• 
  395 and 385

• 
  390.5 and 389.5

• 
  400 and 300

• 
  400 and 350

A bag of flour has a mass of 1500 g (to the nearest 10 g). Find the maximum mass of 10 bags of flour.

• 
  15050 g

• 
  15000.5 g

• 
  15000 g

• 
  15005 kg

A cuboid measures 2 x 11 x 9 m measured to the nearest metre.

What is the least possible volume of the cuboid?

• 
  198.5

• 133.875

• 155.25

• 189.125

Work out the upper bound and lower bound for 32 cm, measured to the nearest cm

• 
  32.5 and 31.5

• 
  31.5 and 32.5

• 35 and 30

• 
  33 and 31

The length and width of a field have been measured as 78m and 35m to the nearest metre. Find the greatest possible amount of fencing needed to surround the field

• 
  27

• 228

• 
  226.5

• 
  228.5

Tom’s weight is 85 kg, correct to the nearest kilogram. Mark’s weight is 62 kg, correct to the nearest kilogram.

Work out the upper bound for the difference between Ton’s weight and Mark’s weight.

• 21

• 24

• 23

• 25

y = 1.8 correct to 1 decimal place. Calculate the lower bound for the value of 4y + 1

• 6

• 7

• 8

• 9