It appears you’re interested in referral codes related to Zearn and cryptocurrency platforms. Let’s explore both:

Zearn Referral Codes:

Zearn is an educational platform focused on math learning. Currently, Zearn does not offer a referral program for users. However, teachers can use class codes to enroll students into their classes. These class codes are unique identifiers that allow students to join specific classes and access tailored learning materials.

Cryptocurrency Platform Referral Codes:

Many cryptocurrency platforms offer referral programs that provide bonuses to both the referrer and the referee. Here are some notable ones:

1. Crypto.com:
   • Referral Code: Using the code “nftevening” during sign-up can unlock a $50 sign-up bonus after meeting specific requirements, such as staking a certain amount of CRO tokens.
   • Sign-Up Bonus Details: New users can receive up to $50 worth of CRO by locking up a minimum amount of CRO on the Crypto.com Exchange.
2. Coinbase:
   • Referral Bonus: By signing up through a referral link and completing the necessary verification and trading requirements, new users can earn a $10 Bitcoin bonus.
3. Binance:
   • Referral Code: Using the code “49316610” can provide up to $600 in rewards and bonuses for new users.

How to Use Referral Codes:

• During Sign-Up: Enter the referral code in the designated field when creating your account on the platform.
• Meeting Requirements: Some bonuses require specific actions, such as depositing funds, trading a certain volume, or staking tokens.
• Receiving Bonuses: Once the conditions are met, bonuses are typically credited to your account.

Note: Always ensure you’re using referral codes from reputable sources and understand the terms and conditions associated with each program.

If you have a specific platform in mind or need further assistance with referral codes, feel free to ask!