Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

primary 5 | Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Po Yen Wang
Po Yen Wang

primary 5 chevron_right Maths

Help?

Date Posted: 7 years ago
Views: 1240

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Christmas MT
Christmas Mt's answer
2904 answers (A Helpful Person)
1st
Using trial and error, write down the headings clearly to represent number of notes and amount of money from the respective notes.

Since $180 ends with a 0, we know that the number of $2 notes used is in multiples of 5.

From the above trial and error table, we can tell that Mrs Ang used 14 $10 notes, 6 $5 notes and 5 $2 notes.