Student answers

This task is about explaining how some students made mistakes on a maths problem.

In a maths test Room 6 were given this problem:

 

Trading-Cards-150px.png
Puawai had 54 trading cards. She gave 18 to her brother.
How many trading cards does Puawai have left?
 
 
Each student had a different way of working out the problem. Their workings are shown below:
 
sums-trading-cards-problem.png
 
 Each student has made a mistake.  For each student identify what they did wrong.

Question 2Change answer

James answer for trading cards problem
 Explain what James did wrong.

Question 2Change answer

Sarah's answer for the trading cards problem
Explain what Sarah did wrong.

Question 2Change answer

Maraea-trading-cards-problems.png
Explain what Maraea did wrong.

Question 2Change answer

Sione-trading-cards-problems.png
Explain what Sione did wrong.