Word Problem Wednesday – e-books

Word Problem Wednesday was such a hit, we’re going to continue through the year with one problem a month.

This problem comes from Dimensions Math 6A by Bill Jackson and Kow-Cheong Yan published in 2016 by Star Publishing Pte Ltd and Singapore Math Inc: 

Esther has 3/5 as many e-books as Tim. After Tim deleted 18 e-books, they both had the same number of e-books on their tablets. How many e-books did Tim have at the start?

Submit your solutions and we’ll post all interesting strategies.

The previous problem came from Problem Solving Beyond the Classroom Primary 3 by Bernice Lau Pui Wah, published in 2013 by Marshall Cavendish International (Singapore) Private Limited. published in 2004 by SingaporeMath.com Inc:

Tank A has a capacity of 1 l 820 ml. Tank B has a capacity of 860 ml less than that of Tank A but twice as much as Tank C. Find the Capacity of Tank C.

How did you do?

About Cassy Turner

Passionate about Singapore Math + Teacher Trainer and Coach + Treasure Hunter + Learner. Answer to the ultimate question? 42.


  1. 3x/5= x-18

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