Ying Tong's answer to Karin's Primary 5 Maths Whole Numbers Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Using the model method here. On top is when he buys 3 books, below is when he buys 5 books.
Date Posted:
3 years ago
360 Tutoring Program