Mental Math Trainer

Teach fast mental-calculation techniques and generate personalized drills: multiplication shortcuts, estimation, percentages, squaring, divisibility, and check-digit verification — with a progression that builds real speed. Use when the user wants to "get faster at mental math", "do math in my head", "mental arithmetic tricks", "practice problems", "estimate quickly", or is prepping for a test/ interview that needs quick calculation.

Category Education & ExamsReview status Not yet verifiedInstallation Pending host tests

Example

A verified input and output example will appear after editorial review. This preview does not include the full skill instructions.

Sample under review

Get Mental Math Trainer

$1 per useOne instruction delivery in your agent; no file download.$19.99 one-skill licenseOne-time purchase. Local use under your license.$39.99/month all accessApproved, available skills while subscribed.

$39.99 per month, renews monthly until canceled. Any trial and first charge are shown at checkout; cancel before renewal to avoid next charge. Access follows the paid period. Pricing is planned; no payment is accepted for this skill yet.

After purchase

Complete checkout
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Use the skill in your own agent

What you get

Versioned skill instructions after verified purchase
Installation guide for tested agents
License and support details

Agent installation status

Hermes, Codex, Claude Code, Muse Code, Grok Build, and ChatGPT Dot need end-to-end customer install and use verification. No one-click install is available.

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Installation steps

Purchase through a verified payment method.
Follow the guide for your agent.
Confirm the skill is installed before use.

License and limitations

Use rights depend on the purchase option. A $1 unlock does not supply a downloadable file; the $19.99 license covers one purchased version; All Access applies while subscribed.

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