SKU: 3173025765

Math Mammoth Grade 5-B Worktext (2023 ed)

$34.45 $38.28
Save 10%
No.2 Bestseller on lamcf.fr >

Pay in installments of $9.57 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Math Mammoth Grade 5-B Worktext (2023 ed)Math Mammoth Grade 5 B worktext (Light Blue Series) is the student worktext covering the second half of fifth grade math in the Math Mammoth curriculum. This is the 2023 edition. The books starts out with chapter 6, where we study multiplying decimals by decimals, dividing decimals by decimals, and conversions between measuring units. Chapter 7 covers the addition and subtraction of fractions, and chapter 8, the multiplication and division of

Math Mammoth Grade 5-B worktext (Light Blue Series) is the student worktext covering the second half of fifth grade math in the Math Mammoth curriculum. This is the 2023 edition.

The books starts out with chapter 6, where we study multiplying decimals by decimals, dividing decimals by decimals, and conversions between measuring units.

Chapter 7 covers the addition and subtraction of fractions, and chapter 8, the multiplication and division of fractions.

Chapter 9 is about geometry. Students learn to classify triangles and quadrilaterals, and study the concept of volume in the context of right rectangular prisms.

Features

- Math Mammoth focuses on conceptual understanding. It explains the "WHY", so your children can understand the math, not just learn "HOW" to do it.
- Concepts are often explained with visual models, followed by exercises using those models. These visual models can take the place of manipulatives for many children; however, it is very easy to add corresponding manipulatives to the lessons if so desired.
- The curriculum is mastery-oriented. This means it concentrates fairly long on a topic, delving into its various aspects. This promotes conceptual understanding, as opposed to spiral curricula that often tend to jump from topic to topic too much.
- Very little teacher preparation is required. :)
- The curriculum has no separate teacher's manual nor is it scripted. The introduction to each chapter has some notes for the teacher concerning the material in the chapter. All the instruction is written directly to the student in the worktext, and there also exist accompanying videos where you can see Maria herself teach the material.
- After each chapter introduction, you will find a list of Internet links and resources (games, quizzes, animations, etc.) that can be used for fun, illustrations, and further practice.

Please note this book is spiral (coil) bound.

The first half of 5th grade math is covered in Math Mammoth Grade 5-A worktext (available separately at Lulu). Also available for grade 5 are the answer key book and a book containing cumulative reviews and chapter tests.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3173025765

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 23 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
MJ Armwood
Bozeman, US
★★★★★ 5
Love my chair!!!
Color: Onyx Black
Love my chair! I’m a student with rheumatoid arthritis and this has made studying much more comfortable. It has great back support, is really sturdy, and easy to use, I don’t feel like I’m going to fall when I tilt it back and use the footrest. It looks good too. It fits in well with my renovated warehouse apartment. Awesome value for the money. I bought mine on sale and it is worth every penny. Thanks!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
J
Verified Purchase
Jesse Langner
Lake Worth, US
★★★★★ 5
My first time…and I like it.
Chairs can be tough to buy new without trying them out in person. You have no idea how it will feel, adjust, or breathe as you sit into it. The only way to know if what you’re getting is good or not is by taking a strangers word on the internet that it’s good. That being said, I’m very happy I listened to the strangers on this one. Coming from exclusively leather, cushiony chairs my whole life, I had no idea what to expect out of its mesh cousin. I was looking for something comfortable like a leather seat with the added breathability that mesh provides. This chair hits all marks. It’s comfortable, it breathes, is fully adjustable and comes with easy to read instructions backed up by the best customer service I’ve ever received online in my last 20 years on the web. The curves and contours of the chair fit my 5’10” 250 lb. frame nicely. The pneumatic adjustment is firm and cooperates well with any adjustments you might need. The upright position makes me feel like I slouch too much (which I probably do) and the lowest position almost makes me fall asleep (which I probably need). The casters glide as if on ice (after an upgrade, more on that later) and have no trouble changing course. The wheels might actually slide too well as now I have to plant my feet to stop myself on my wood floors. There is a “not included but provided upon request” lumbar pillow. The cushion is high quality but my back didn’t take to it very well. Not a knock on the chair, just my bad back. All in all, 5/5 so far. All of Assembly is easy if you’ve ever put together any office chair ever. It’s the same. No surprises there. Steel construction with steel screws and a provided Allen wrench for the initial build. I would suggest using a battery powered drill at low speed for the screws. Having a power tool makes the job much quicker but isn’t necessary. All of the pieces are clean and free of any machining burrs. Again, 5/5. Now we get to the customer service. The entire reason I decided to go with this chair was based on feedback provided by past customers. And I’m sure glad I listened. The lumbar pillow I spoke about only took a short email to acquire. Their friendly, helpful, and well spoken customer service agents are quick to reply and are always asking for feedback. I also mentioned earlier in the review that my casters were now good. That does mean the ones that it includes were not up to the standard of the rest of the chair for my weight. That being said, my wife, who is much smaller than I am, had no issues scooting around on the included wheels. Anyway, the company ended up sending me a replacement set of high quality nylon casters at no charge that tied up this experience in a nice little bow. The company did request the old wheels and base the be returned but the prepaid shipping label was provided. The option to have them arrange pickup of said items was also available. 5/5 with ease. So there it is. My first review ever. I would be doing the manufacturer a disservice by not detailing the entire experience from exceptional construction to customer service rivaled by none. If you’re looking to give mesh chairs a shot, don’t be afraid. You will not regret it. (I know this review was all positive. It was not sponsored. Unless you count the upgrades, but anyone can get those.)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2023
L
Verified Purchase
Lisa
Dallas, US
★★★★★ 5
Comfort, support, style, and durability in this chair!
Color: Lightbrown, Color: Lightbrown
🥰 Very sturdy and durable for everyday use in the office or at home! Perfect for sitting, planking, criss-cross Apple sauce, or whatever seating position you wanna call it lol. 🛠️ Assembly; All the tools you need are provided in this kit! This took me all of 20 minutes to complete. Once you read the instructions, it’s pretty much placing screws in holes and done! No drilling needed! Cheers to the quick and easy process! Material is easy to clean, for keeping it in pristine condition! 🌟 Softness; Very nice and plush backing! Sides come down just as advertised but requires a bit of force to do so which is perfect, as they aren’t just plopping down because you press on the arms. I was concerned that would be an issue, and it’s nothing to worry about! Absolutely Love it, well designed for comfort / support, style, and adaptability! ✅ Stability; Chair wheels glide as expected on my carpeted floor. Pretty much with ease on the tile surface. The chair feels sturdy, even with the adjustable height and backspring, ultimately a relaxing desk chair. I appreciate there not a lot of wobble and no noise when moving around.. I’m not getting wild here but you could totally plank on the chair if you wanted and it still remain stable! 👍✨ Overall, I would definitely recommend! Storage side pockets are a plus!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
J
Verified Purchase
Joseph J
Alexandria, US
★★★★★ 5
Stylish, comfortable, and very practical
Color: Black, Color: Black
This chair is both cuteand funtional. The wide seat is super comfortable, especially for sitting cross-legged, and the flip-up arms are really convenient. I also like the side pockets for small items. It rolls smoothly, feels sturdy, and was easy to asssemble. Perfect for a home office or vanity setup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
A
Verified Purchase
Angeline
Lexington, US
★★★★★ 5
Nice office chair
Color: Beige
I recently purchased this chair for my home office setup. This chair is very comfortable and feels sturdy right out of the box. The seat cushion is thick and supportive, the back provides good support. I really like the flip-up armrests, which make it easy to slide the chair under my desk. Assembly was simple and didn't take long. Overall, it's a solid, well-built chair and a great value for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026

recommand products

Electimuss Puritas Parfum 100 ml (Unisexe)
193.38
French Avenue Genesis Libra Eau De Parfum 90 ml (unisexe)
43.69
Chloé Chloé Eau De Parfum Roll-On 10 ml Femme
34.48
Shiseido Synchro Skin Self-Refreshing Fond de teint SPF 30 (220 Linen) 30ml
44.45
Ormonde Jayne Damask Eau De Parfum 88 ml (unisexe)
155.18