Serena's answer to Athanasius's Primary 6 Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Serena
Serena's answer
11 answers (A Helpful Person)
1st
Is this correct?
Chen Rong
Chen Rong
6 years ago
Oh dear, I don't think the model should be drawn that way? Also I don't understand why 18 is multiplied by 7. Is there any explanation for the workings?