Ordering weight

Ordering weight

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Further Resources
This task is about ordering decimal numbers.
illustration: six dogs
 
Six people at a dog show weighed their dogs.
 

Lemi

35.4 kg

Mila

27.4 kg

Fola

29.3 kg

Iotana

35.1 kg

Niki

29.8 kg

Sharon

28.4 kg

Question Change answer

a)  Order the dogs' weights from lightest to heaviest.
  • Lemi
    35.4 kg
  • Mila
    27.4 kg
  • Fola
    29.3 kg
  • Iotana
    35.1 kg
  • Niki
    29.8 kg
  • Sharon
    28.4 kg

Question

 
 
b)  Three of the dogs weigh 99.8 kg altogether.
     Select who they are from the list below. 
    • Lemi   35.4 kg

    • Mila  27.4 kg

    • Fola  29.3 kg

    • Iotana   35.1 kg

    • Niki   29.8 kg

    • Sharon   28.4 kg

Task administration: 
This task can be completed with pencil and paper or online (with auto-marking displayed to students).
Level:
3
Description of task: 
Students order a set of student's weights from lightest to heaviest and identify the three students needed to equal a given weight total.
Answers/responses: 
    Y6 (08/2002)
2 marks (for all correct)
or
1 mark (for 1 error)
Errors include:
  • transcription errors
  • transposition two numbers
  • ordering heaviest to lightest.)
a) Mila: 27.4, Sharon: 28.4, Fola: 29.3, Niki: 29.8, Iotana: 35.1, Lemi: 35.4 very easy
 1 mark b) Lemi: 35.4, Itotana: 35.1, Fola: 29.3 difficult
Diagnostic and formative information: 

Common error

Likely calculation

Likely reason

Lemi, Iotana, Niki

99.8 - (35 + 35) = 99.8 - 70

Ignores decimal part of Lemi's and Iotana's weights.