It helped people to exchange goods and take what they needed.

What advantages did it have?

To exchange things people had left by goods they needed. 

What limitations did it have?

It was difficult to find people who needed what you had to exchange. 

The QR and the Digital Wallets help pay and send money fast without physical money.

What are its advantages?

Payments are fast, easy and safe. You can pay with a cellphone and send money to family and friends in seconds.

What are its limitations?

In general you need a cellphone with battery and WI-FI. Not all the supermarkets accept the QR and some people don’t know how to use it. 

It allowed people to buy and sell without bartering goods. 

What advantages did it have?

It was easy to use and everyone knew its price.

What limitations did it have?

It was not accepted in every place.

It helped people to exchange goods and take what they needed.

What advantages did it have?

To exchange things people had left by goods they needed. 

What limitations did it have?

It was difficult to find people who needed what you had to exchange. 

What problem did it solve?

It allowed people to buy objects without cash.

What advantages did it have?

It was easy to exchange items and get what people wanted.

What limitations did it have?

Not everyone accepted the same shells or valuable objects, and their value could vary.

It allows you to buy things without having money.  

What are its advantages?

It´s safer than carrying a lot of money. 

What are its limitations?

If you don´t pay on time, they may charge you interest and increase the debt.

Having to carry a large amount of cash to make a payment. It also allowed people to pay other people or companies more safely. A check served as a method of payment for others.

What are its advantages?

They allowed people to make payments without using cash.

They are safer than carrying large amounts of cash.

They are useful for making important payments.

What are its limitations?

Only people who have a bank account can use it.

If there is not enough money in the account, the check cannot be cashed.

You have to go to the bank to cash it or deposit it.

It is slower than the electronic payment methods available today.

Salt helped people buy and sell things when coins or notes didn't exist.

What advantages did it have?

It could be divided into little amounts of money to pay different things. 

What limitations did it have?

It could get wet or go bad.

It solved the problem of carrying a lot of coins.

What advantages did it have?

It weighed less than coins. 

What limitations did it have?

Not everyone trusted them at the beginning. 

It allowed people to buy and sell without bartering goods. 

What advantages did it have?

It was easy to carry.

Everyone in the Empire knew their value. 

What limitations did it have?

Each Empire had its own 

The bank helps people to  keep their  money  safe   and  to send  or receive  money   without carrying a lot of money.

What advantages did it have?

Protected people´s money.

It allowed people to save for the future.

Make payments and purchases easier.

It helped lend money to people.

It made money exchange faster.

What limitations did it have?

Some people lived far from Banks.

Some services may have a cost. 

People needed a bank account to use its services.

Some services didn´t work without electricity. 

What problem did it solve?

It allowed people to buy and trade things without using barter (trading one item for another).

What advantages did it have?

It was difficult to transport

It was used to store wealth and show how much a person or family was worth it.

What advantages did it have?

A lot of people accepted it as a way of payment.

What limitations did it have?

PEOPLE  COULD GROW MORE ANIMALS RISING THEIR PRICES. 

It needed food and water.

It could get ill or die losing its value. 

Digital payments allow people to pay without using cash. This way, people can buy or send money quickly using a mobile phone, a computer, or a payment card.

What are its advantages?

It is fast and easy to use.

There is no need to carry cash.

You can pay or send money from almost anywhere.

It helps make purchases safer.

What are its limitations?

In many cases, an internet connection or an electronic device is required.

Not everyone knows how to use this technology.

If there is no internet connection, the battery runs out, or the system fails, it can be difficult to make a payment.sunto