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Math Roller - Strips of operations on the fly

Math Roller - Strips of operations on the fly

  • Free shipping with delivery in 5-10 days
  • Express shipping 48/72h +3,99€
  • 25% Dto. comprando 2 o más! Añade 2 juegos al carrito para ver el nuevo precio
19,99€
19,99€ 19,99€
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  • Cash on delivery available for express deliveries (+1.99€)

Payment and returns

You can pay by card, Paypal or, if you choose express delivery, cash on delivery is available (+1.99€). If you usually use Google Pay or Apple Pay for card payments, you will see a button to make the payment that way directly.

You can contact us to cancel your order once it has been placed or manage the return up to 14 days after delivery, provided that the product has not been visibly damaged by the customer.

Any questions?

If you have any questions, you can write to us on WhatsApp, where it is easier for us to respond sooner.

By clicking here, a chat with us will open directly.

MATHEMATICAL ROLLER

You can choose the addition and subtraction, multiplication and division version, or fill in the blank (which consists of addition and subtraction).

At each end of the roller there is a type of operation, and with the regulators on the sides the numbers can be adjusted, so that the operations printed are different each time.

REFILLABLE WITH INK

The roller comes with a full refill of ink, and if it runs out, it is possible to refill it by removing the regulators on the sides and introducing the ink into the recess.

We have refills available on our website at this link .

It is recommended to add about 10 drops of ink to ensure good print quality and prevent overflow.

The ink is harmless, non-toxic, and is designed not to cause any problems for children.


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The importance of reducing screen time

They harm the eyesight

Too much screen time strains the eyeballs and can create/aggravate vision problems, especially in children.

The blue light emitted by screens is the cause, and it is more dangerous when the screen is close to the eyes.

Concentration problems

Much of the content on social media (especially that made for children) is designed to achieve the longest possible consumption time, which creates the habit of spending hours switching from one video to another without using creativity.

If the brain gets used to receiving dopamine simply by looking at a screen, it will be increasingly difficult to entertain itself with things that require effort.

Lower quality of sleep

Prolonged use of screens during the day keeps the brain active and makes it difficult for it to enter "rest mode" and maintain it at night (in both adults and children).

Other articles and studies

ABC - The risks of excessive screen use in children

Mental Health Forum Madrid - The danger of overexposure to screens

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