Upper and Lower Bounds

Descrição

GCSE Maths (Year 8 Number 2) Quiz sobre Upper and Lower Bounds, criado por Ellen Billingham em 11-05-2013.
Ellen Billingham
Quiz por Ellen Billingham, atualizado more than 1 year ago
Ellen Billingham
Criado por Ellen Billingham mais de 11 anos atrás
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Resumo de Recurso

Questão 1

Questão
What is the lower bound of 32 if it has been rounded to the nearest unit?
Responda
  • 31
  • 31.5

Questão 2

Questão
What is the upper bound of 32 if it has been rounded to the nearest unit?
Responda
  • 32.49
  • 32.5

Questão 3

Questão
What are the bounds of 200 if it has been rounded to the nearest 10?
Responda
  • LB = 195 UB = 204
  • LB = 195 UB = 205

Questão 4

Questão
What are the bounds for 20 to 1 s.f?
Responda
  • LB = 15 UB = 25
  • LB = 19.5 UB = 20.5

Questão 5

Questão
What are the bounds of 20 to 2 s.f?
Responda
  • LB = 15 UB = 25
  • LB = 19.5 UB = 20.5

Questão 6

Questão
A rectangle has sides given as 6cm by 15cm, to the nearest cm. Calculate the limits of accuracy of the perimeter and area of the rectangle.
Responda
  • Perimeter - Min = 40 and Max = 44 Area - Min = 79.75 and Max = 100.75
  • 40 ≤ Perimeter

Questão 7

Questão
a = 7.2 to 1 d.p b = 4.5 to 1 d.p What are the largest and smallest possible values for a/b?
Responda
  • LB = 1.57 UB = 1.63
  • LB = 1.59 UB = 1.61

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