Upper and lower bounds

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

• 382.375

• 197.5

• 223.125

Tags

CCSS.7.EE.B.3

A piece of A4 paper is 21.1 cm by 29.7 cm measured to the nearest 0.1cm. What are the lower and upper bounds of its area, in square centimetres, correct to 1 dp?

• 624.1325 and 629.2125

• 624.1 and 629.2

• 624.13 and 629.21

• 624 and 629

Tags

CCSS.7.EE.B.3

the mass of the girl is 60 kg her estimate is correct to the nearest 10 kg between what limits does the actual mass girl lie

• 50.5≤60<70.5

• 55≤60<65

• 50≤60<70

The number 43.4 has been rounded to the nearest tenth. Find its lower and upper bounds.

• 42 ≤ 43 < 44

• 43.3 ≤ 43.4 < 43.4

• 43.35  ≤ 43.4  < 43.45

Tags

CCSS.7.EE.B.3

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

Tags

CCSS.7.EE.B.3

The distance travelled by an object is 18 metres in a time of 1.8 seconds. Both measurements have been given correct to 2 significant figures. Calculate the minimum and maximum possible speed of the object in m/s.

• 9.75 and 10.35

• 9.5 and 10.5

• 9.46 and 10.57

• 10 and 9

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSN.Q.A.1

CCSS.HSN.Q.A.2

CCSS.HSN.Q.A.3

A sheet of paper is 0.08mm thick correct to 2 decimal places. Calculate the difference between the least and greatest possible heights if 2000 pieces of paper are stacked on top of each other

• 200

• 20

• 2000

• 160

Tags

CCSS.7.EE.B.3

To the nearest thousand, 90 000 cars drive through the road toll in one week.Write down the lower bound for this number of cars.

• 85000

• 89950

• 89500

• 89999.5

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

An equilateral triangle has sides of length 6.2 cm, correct to the nearest millimetre. Find the lower bound and t the statement about the perimeter, P cm, of the triangle.

• 24.6 and 25

• 24.75 and 24.85

• 24.55 and 24.65

• 24.95 and 25.5

Tags

CCSS.7.EE.B.3

The sides of the rectangle are measured to the nearest cm. What is the largest area of the rectangle?

• 15 cm²

• 19.3 cm

• 19.25 cm²

• 11.25 cm²