NG BAN WAH's answer to jayden's Primary 5 Maths Whole Numbers Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
NG BAN WAH
Premium Tutor
Ng Ban Wah's answer
373 answers (Tutor Details)
1st
The difference in 2 person's age will not change.