I Used to Know That: Maths
PRE-ORDER This title is currently out of stock. Order now — payment is taken today and we'll ship it to you anywhere between 15–90 days. You'll get an email confirming your pre-order and again when it's dispatched.
Care information
Care information
Keep books away from direct sunlight and damp conditions to protect the binding and pages. Handle with clean, dry hands and use a bookmark instead of folding page corners.
Delivery & Shipping
Delivery & Shipping
We ship across India. Orders are dispatched within 1–3 business days. Estimated delivery after dispatch:
- Metro cities: 5–7 business days
- Remote / non-metro areas: up to 14 business days
- Pre-order titles: 15–90 days (as shown on the product page)
Free delivery on orders of ₹999 or more — a fixed ₹75 delivery charge applies below ₹999. You'll receive a tracking link by email/SMS once your order ships.
I Used to Know That: Maths
PRE-ORDER This title is currently out of stock. Order now — payment is taken today and we'll ship it to you anywhere between 15–90 days. You'll get an email confirming your pre-order and again when it's dispatched.
Description
Description
Brush up on your mental arithmetic, including percentages, averages and recurring decimals or work on your trigonometry skills, from Pythagoras' Theorem to triangle areas and angles. I Used To Know That: Maths is a fun and accessible way to re-visit all those useful tips and maths tricks that you have forgotten from your school days.
Specifications
Specifications
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Language
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Dimensions19.8cm x 12.9cm x 0.65cm
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Weight
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Categories["Education & Study Skills", "Learning", "Learning Techniques"]
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Pages
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Binding
Care information
Care information
Keep books away from direct sunlight and damp conditions to protect the binding and pages. Handle with clean, dry hands and use a bookmark instead of folding page corners.
Delivery & Shipping
Delivery & Shipping
We ship across India. Orders are dispatched within 1–3 business days. Estimated delivery after dispatch:
- Metro cities: 5–7 business days
- Remote / non-metro areas: up to 14 business days
- Pre-order titles: 15–90 days (as shown on the product page)
Free delivery on orders of ₹999 or more — a fixed ₹75 delivery charge applies below ₹999. You'll receive a tracking link by email/SMS once your order ships.
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Self-Help & Personal Development
