Mr Tang was my lower secondary Maths teacher, and to him fell the task of teaching us about negative numbers.
He imparted the following wisdom: If you multiply or divide two negative numbers, the result is a positive number. How to remember? Simple: the enemy of my enemy is my friend.
Already a subscriber? Log in.
Limited time offer:
Just RM5 per month.
Cancel anytime. No ads. Auto-renewal. Unlimited access to the web and app. Personalised features. Members rewards.
Follow us on our official WhatsApp channel for breaking news alerts and key updates!