Sandra Teo's answer to Nurul Huda's Primary 5 Maths question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Sorry, I can only think of using the guess and check method. But we need to guess smartly in order to save time during exams.
Date Posted:
7 years ago
360 Tutoring Program