What should be added to 103 to get 250? This series introduces your child to analysing data through images which helps stimulate their mind. The activities also help enhance aptitude-based problem-solving skills. The difficulty level gradually increases in the books while also going back to easier questions for revision and retention of the old concepts simultaneously.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.