SKU: 42520076901

Singapore Math: Primary Math Textbook 3A US Edition

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Description

Singapore Math: Primary Math Textbook 3A US EditionPrimary Math 3A, U. S. Edition teaches numbers and number patterns to 10,000; addition and subtraction including 2 step word problems; multiplication and division, quotient and remainder, multiplication tables of 6, 7, 8, and 9; money (US Currency). The Primary Mathematics U. S. Edition series of elementary math textbooks and workbooks is meant to be part of a system of learning in which adult supervision and independent practice go hand in hand. The

Primary Math 3A, U.S. Edition teaches numbers and number patterns to 10,000; addition and subtraction including 2-step word problems; multiplication and division, quotient and remainder, multiplication tables of 6, 7, 8, and 9; money (US Currency).

The Primary Mathematics U.S. Edition series of elementary math textbooks and workbooks is meant to be part of a system of learning in which adult supervision and independent practice go hand in hand. The main feature of this series is the use of the Concrete to Pictorial to Abstract approach. Students are provided with the necessary learning experiences beginning with the concrete and pictorial stages, followed by the abstract stage to enable them to learn mathematics meaningfully. This approach encourages active thinking process, communication of mathematical ideas and problem solving, which helps develop the foundation students will need for more advanced mathematics. 

Practice exercises are designed to provide the students with further practice after they have done the relevant workbook exercises. Review exercises are provided for cumulative reviews of concepts and skills. All the practice exercises and review exercises are optional exercises.

The color patch  is used to invite active participation from the students and to facilitate oral discussion. The students are advised not to write on the color patches.

Above extract from Preface of Primary Mathematics U.S. Edition (reproduced with the permission of the publishers).

The textbooks contain the learning tasks for students to do under adult supervision and interaction, along with practice and review problems. They are meant to be non-consumable and to be used along with the Primary Mathematics Workbooks.

Answers or answer keys for Primary Mathematics U.S. Edition textbooks and workbooks are found in the teacher's guides and home instructor's guides. Answer keys booklets are also available - one for Primary 1-3 and one for Primary 4-6.

Our recommendation:
Primary Mathematics U.S. Edition 1A-6B is ideal for both classroom and home use for 1st - 7th grades. 

Recommended for those who want a solid, basic math program with a proven track record and an emphasis on concept development, mental techniques, and problem solving. This is primarily a direct instruction program. Students are given several approaches for solving problems and are encouraged to discuss ideas and explore additional methods. 

Product Information
Format: Paperback
Vendor: Singaporemath.com Inc
Dimensions: 10.25 X 7.5 (inches)
ISBN: 9810185022
ISBN-13: 9789810185022
Series: Singapore Math

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SKU: 42520076901

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KC
Waukegan, US
★★★★★ 5
Very classy looking! Perfect height and length for TKL keyboards!
This wrist rest is the perfect height and length for my TKL keyboards! The wood is soft and smooth. It looks VERY classy compared to some of the wrist rests I've used in the past. The non-slip pads work great too. The only thing I could find that was wrong is that the logo is upside down. It's not visible though because it's the edge that meets the keyboard so it's never seen. I find it endearing actually! Everything else is perfect, so I'd definitely recommend!
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Reviewed in the United States on September 23, 2025
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Justin Sternberg
Houston, US
★★★★★ 3
Classy look, but finish issue
This walnut wrist rest looks great on the desk—simple, solid, and much nicer than foam or gel options. It has a clean, polished style that pairs well with a keyboard, and the non-slip base keeps it from sliding around. I wasn’t sure how I would like it compared to the soft cushy pad I used before, but it’s actually been pretty comfortable. The firmness gives steady support, and I haven’t found it too uncomfortable even after longer typing sessions. The one drawback is a spot where the finish has worn or dissolved. It wasn’t there when I first got it, so I suspect the coating isn’t as durable as I’d hoped. It doesn’t affect how it feels in use, but it does stand out on an otherwise sharp-looking piece. Overall, it’s a nice upgrade if you want a wooden wrist rest, just be aware the finish might not stay flawless over time.
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Reviewed in the United States on September 11, 2025
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Dolli
Waukegan, US
★★★★★ 5
Classy, Comfortable, and Built to Last!
I’ve never tried a wooden wrist rest before, but after going through a few padded ones (even some expensive name-brand versions) that eventually peeled or fell apart, I figured this was worth a shot. And I’m so glad I did! This walnut wrist rest is smooth, beautifully made, and looks amazing on my desk. I have a whitewashed office setup, but this piece looks so good that I half-joked about wanting to change my desk to match it! It adds a very clean, grown-up aesthetic to the space. One thing I really appreciated is that it comes in several sizes to suit different setups. I ordered the largest available, and while it’s just a couple inches shy of covering the full length of my keyboard, it still works perfectly. It has non-slip grips on the bottom that keep it in place, and even though it’s made of solid wood, it’s surprisingly comfortable and ergonomic to type with. It’s also super low-maintenance—just wipe it clean with a damp cloth. For the $26–$29 price range, I think it’s a fantastic value and honestly better than some of the big-name options I’ve tried. This is a quality piece I expect to hold up for a long time, and I’m really happy with it!!
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Reviewed in the United States on July 23, 2025
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Theo
Charlottesville, US
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Check the height of your keyboard before ordering
This is a beautifully made, elegant looking wrist rest. The finish is satin perfectly smooth to the touch. As keyboards vary in height, be sure to measure he height of the front edge of yours before ordering—I didn’t (which is entirely my fault) and found that this wrist rest is just a wee bit too tall, which positioned my wrists a tad higher than I’m used to. Another factor you may want to consider are the ergonomics of solid wood versus other materials and your personal preferences (e.g., I tend to prefer cloth covered gel, because he cloth keeps my wrists from sticking and the gel is cushioning). My closing thought: this wrist rest is that it is by far the best looking of any wrist rest I’ve ever seen. [Disclosure: I received this product for “free”—in quotes because the IRS considers the item’s retail value as taxable income for federal income tax purposes. This review is my personally written—not AI generated—honest opinion, and is uncensored by the seller.]
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Reviewed in the United States on July 29, 2025
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Jackson
Boise, US
★★★★★ 5
Amazing item!
Color: Brown
Amazing quality feels very nice to the touch, decent size, on the bigger side if you’re looking for a smaller table organizer, but still great!
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