--- product_id: 8457637 title: "Singapore Math – 70 Must-Know Word Problems Workbook for 5th Grade Math, Paperback, Ages 10–11 with Answer Key (Volume 3)" price: "₩2973" currency: KRW in_stock: false reviews_count: 13 url: https://www.desertcart.kr/products/8457637-singapore-math-70-must-know-word-problems-workbook-for-5th store_origin: KR region: South Korea --- # Singapore Math – 70 Must-Know Word Problems Workbook for 5th Grade Math, Paperback, Ages 10–11 with Answer Key (Volume 3) **Price:** ₩2973 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Singapore Math – 70 Must-Know Word Problems Workbook for 5th Grade Math, Paperback, Ages 10–11 with Answer Key (Volume 3) - **How much does it cost?** ₩2973 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/8457637-singapore-math-70-must-know-word-problems-workbook-for-5th) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description GRADE 5/AGES 10–11: This workbook features math practice and activities for first and second grade students based on the Singapore Math method; designed to help students master word problems. INCLUDES: Each unit has learning objectives, which clearly define the skills to be learned in that section, and an answer key with worked out solutions that help students see how to work the problems. WHY SINGAPORE MATH: Many students struggle with word problems. To help overcome this struggle, these workbooks focus on diagrams, number bonds, the "counting on" method, and the "crossing out" method to help students master challenging word problems as well as exercise mental calculation. NOT OVERWHELMING: Features one problem per page and step-by-step solutions in the answer key. HOMESCHOOL FRIENDLY: Perfect as a supplement to classroom work or as a homeschool resource, this series will boost confidence in problem-solving and critical-thinking skills. Review: Interesting and challenging - I love this book, while my daughter hates it. It challenges your mind and you have to use your brain to solve these problems, which are not difficult at all but slightly different from the typical word problems. Most of the problems LOOK difficult at the first glance, but they are not. At the beginning I was not happy with the provided solutions which are mostly based on drawings and diagrams, but these solutions are simple and elegant. You still can teach your child a traditional method, when you make a system of 2 equations (as a 4th grader she was not familiar with the concept), but I found the approach used in the book more simple. Review: 5th grade math: using algebra? or using diagrams? - My son is 9yr (will be 10yr in 2months) and will be 4th grade soon. He finished the spectrum math grade 6 recently, and I got this to review 5th grade math using word problems before starting another grade 6 workbook. After two questions, I am debating whether to hold it until the end of 6th grade (or 7th grade) level or just do it now. ** update on 11/12/22 I used this book when my son fishied 6th grade level math.. I ignored the answer explanations, and taught my son to use algebra to solve problems. Very good problems for prealgebra level. Nor for 4th grade level. I don't think the answer explanations are right way to teach. However, I liked it, so I ended up buying the next two levels of Singapore math word problem workbooks. Why? Questions are not too difficult, but it looks better to solve using algebra concept. 1st question is 2 diamond rings + 4 silver rings= $1440 and 1 diamond ring + 1 silver sing = $660. My son combined numbers back and forth in his mind, and got the correct answer after trying two incorrect answers. The way to solve would be 2d + 4s=1440 and d+s=660 --> d =660-s --> 2(660-s) + 4s=1440 --> 1320-2s+4s=1440 --> 2s=1440-1320 = 120 --> s=60. I would say this is almost 7th grade math. The solution shows diagrams to solve this problem without algebra, but it looks a bit non-mathematical for me. It looks more like puzzle questions. Most questions are similar pattern. Would it be better to try this type of questions now and will it help him later understand algebra better? or, would it be better to know algebra first, then solve using algebra? This is the first time I purchased Singapore math workbook. I checked other level singapore math workbooks, and found that it's all similar style. The suggested solutions show diagrams to solve math. I am not sure if I want to teach my son 5th grade level using such diagram concept. Still debating whether to use this workbook to teach my son algebra after grade 6 level or use it now to practice the suggested methods (using diagrams). ## Features - This book is perfect for students familiar with Singapore math and for those who just need extra math practice - Each unit has learning objectives, which clearly define the skills to be learned in that section, and an answer key with step-by-step worked out solutions that help students see how to work the problems - Perfect as a supplement to classroom work or as a homeschool resource, these workbooks will boost confidence in problem solving and critical-thinking skills - Title: Singapore Math 70 Must-Know Word Problems ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #1,029,790 in Books ( See Top 100 in Books ) #2,316 in Children's Math Books (Books) | | Customer Reviews | 4.5 out of 5 stars 354 Reviews | ## Images ![Singapore Math – 70 Must-Know Word Problems Workbook for 5th Grade Math, Paperback, Ages 10–11 with Answer Key (Volume 3) - Image 1](https://m.media-amazon.com/images/I/81FWI-OE+bL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Interesting and challenging *by I***E on August 6, 2019* I love this book, while my daughter hates it. It challenges your mind and you have to use your brain to solve these problems, which are not difficult at all but slightly different from the typical word problems. Most of the problems LOOK difficult at the first glance, but they are not. At the beginning I was not happy with the provided solutions which are mostly based on drawings and diagrams, but these solutions are simple and elegant. You still can teach your child a traditional method, when you make a system of 2 equations (as a 4th grader she was not familiar with the concept), but I found the approach used in the book more simple. ### ⭐⭐⭐⭐⭐ 5th grade math: using algebra? or using diagrams? *by S***A on July 7, 2020* My son is 9yr (will be 10yr in 2months) and will be 4th grade soon. He finished the spectrum math grade 6 recently, and I got this to review 5th grade math using word problems before starting another grade 6 workbook. After two questions, I am debating whether to hold it until the end of 6th grade (or 7th grade) level or just do it now. ** update on 11/12/22 I used this book when my son fishied 6th grade level math.. I ignored the answer explanations, and taught my son to use algebra to solve problems. Very good problems for prealgebra level. Nor for 4th grade level. I don't think the answer explanations are right way to teach. However, I liked it, so I ended up buying the next two levels of Singapore math word problem workbooks. Why? Questions are not too difficult, but it looks better to solve using algebra concept. 1st question is 2 diamond rings + 4 silver rings= $1440 and 1 diamond ring + 1 silver sing = $660. My son combined numbers back and forth in his mind, and got the correct answer after trying two incorrect answers. The way to solve would be 2d + 4s=1440 and d+s=660 --> d =660-s --> 2(660-s) + 4s=1440 --> 1320-2s+4s=1440 --> 2s=1440-1320 = 120 --> s=60. I would say this is almost 7th grade math. The solution shows diagrams to solve this problem without algebra, but it looks a bit non-mathematical for me. It looks more like puzzle questions. Most questions are similar pattern. Would it be better to try this type of questions now and will it help him later understand algebra better? or, would it be better to know algebra first, then solve using algebra? This is the first time I purchased Singapore math workbook. I checked other level singapore math workbooks, and found that it's all similar style. The suggested solutions show diagrams to solve math. I am not sure if I want to teach my son 5th grade level using such diagram concept. Still debating whether to use this workbook to teach my son algebra after grade 6 level or use it now to practice the suggested methods (using diagrams). ### ⭐⭐⭐⭐ Good stuff! *by J***. on December 3, 2013* The explanations are not always easy to understand but what you learn is very useful. It teaches you how to solve some problems using algebra but without having to use variables. ## Frequently Bought Together - Singapore Math 70 Must-Know Word Problems Level 4, Grade 5 - Singapore Math Challenge, Grades 4 - 6 - Singapore Math Practice Level 5A, Grade 6 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/8457637-singapore-math-70-must-know-word-problems-workbook-for-5th](https://www.desertcart.kr/products/8457637-singapore-math-70-must-know-word-problems-workbook-for-5th) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-09*