--- product_id: 80411398 title: "-20 to 20 Student Number Lines" brand: "carson dellosa education" price: "£19.83" currency: GBP in_stock: true reviews_count: 5 category: "Carson Dellosa Education" url: https://www.desertcart.co.uk/products/80411398-20-to-20-student-number-lines store_origin: GB region: United Kingdom --- # Color-coded odd/even for instant pattern recognition 30 durable 22" x 1.5" number lines Write-on/wipe-away reusable surface -20 to 20 Student Number Lines **Brand:** carson dellosa education **Price:** £19.83 **Availability:** ✅ In Stock ## Summary > 📐 Elevate math mastery—because every number counts! ## Quick Answers - **What is this?** -20 to 20 Student Number Lines by carson dellosa education - **How much does it cost?** £19.83 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/80411398-20-to-20-student-number-lines) ## Best For - carson dellosa education enthusiasts ## Why This Product - Trusted carson dellosa education brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Value-Packed Set:** Includes 30 number lines—enough for the whole classroom or study group. - • **Built for Repeated Use:** Durable write-on/wipe-away surface lets students practice endlessly without waste. - • **Perfect Desk Companion:** Compact 22" x 1.5" size fits perfectly on any student desk for hands-on learning. - • **Boosts Core Math Skills:** Ideal for counting, comparing, partitioning, and spotting number patterns. - • **Master Number Sense with Ease:** Color-coded lines instantly distinguish odd and even numbers, making math intuitive. ## Overview The -20 to 20 Student Number Lines set includes 30 color-coded, 22" x 1.5" reusable number lines designed to help students easily identify odd and even numbers. Featuring a write-on/wipe-away surface, these durable tools support repeated practice of fundamental math concepts such as counting, number patterns, and comparison, making them an essential hands-on resource for classrooms and home learning. ## Description The -20 to 20 Student Number Lines are color coded to make it easy for students to recognize odd and even numbers. Each set of student number lines includes 30 number lines that measure 22" x 1.5" each. They also feature a write-on/wipe-away surface to make it easy for students to use over and over again! Student number lines are the perfect hands-on tool for reinforcing mathematical concepts such as counting, identifying number patterns, partitioning numbers, comparing numbers, and building number sense. Review: Perfect! Not too big and perfect size for desk. Great for fingers to count on. Review: These are very nice for children learning to add and subtract. I learned with number lines and thought it would be helpful for my granddaughter. I did not read that there were 30 in the pack so maybe take note of that. Great value for the money. ## Features - 9781483816951 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | 1483816958 | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 257,232 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 1,220 in Address Books | | Customer Reviews | 4.7 4.7 out of 5 stars (413) | | Date First Available | 18 Dec. 2014 | | Item Package Quantity | 1 | | Item Weight | 136 g | | Item model number | 155000 | | Manufacturer | Carson Dellosa Education | | Number of Pieces | 120 | | Part number | CD-155000 | ## Images ![-20 to 20 Student Number Lines - Image 1](https://m.media-amazon.com/images/I/71h+j9wc-VL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by A***R on 16 February 2025* Perfect! Not too big and perfect size for desk. Great for fingers to count on. ### ⭐⭐⭐⭐⭐ Review *by D***S on 1 April 2025* These are very nice for children learning to add and subtract. I learned with number lines and thought it would be helpful for my granddaughter. I did not read that there were 30 in the pack so maybe take note of that. Great value for the money. ### ⭐⭐⭐⭐⭐ Review *by J***L on 16 January 2025* I laminated to make more durable, but don’t need to. Dry erase marker works well. Great as a math manipulative. ## Frequently Bought Together - Carson Dellosa 30-Piece Number Line Set, 22" x 1.5" Dry Erase Hands-on Learning Tools With Color-Coded Numbers -20 Through 20, Math Classroom Must Haves - Number Line Bulletin Board Border -20 to 100 Number Line for Classroom Wall Classroom Decoration Set 36ft 1 Roll for Math Classes - Amazon Basics Wood-Cased #2 Pencils, Pre-sharpened, HB Lead Bulk Box, 150 Count, Yellow --- ## 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.co.uk/products/80411398-20-to-20-student-number-lines](https://www.desertcart.co.uk/products/80411398-20-to-20-student-number-lines) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-14*