Henry Tan's answer to CA's Primary 5 Maths Whole Numbers Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Henry Tan
Henry Tan's answer
359 answers (A Helpful Person)
Model method. I have uploaded steps by steps video presentation on to YouTube https://youtu.be/goeCBSrwK30 , you can learn from there.