Envelope Math 4+

Number sense and estimation

Gregory Papakyriakou

Designed for iPad

    • $3.99

Screenshots

Description

Practice your number sense and estimation skills to make rapid decisions in real time. Great for interview prep and decision making.

We are taught that arithmetic should be precise. But precision is rarely a make-or-break for most decisions. Back-of-envelope math, or napkin math, is a tried and true method to quickly assess value. Having a good-enough estimate, and being able to assess values in real time helps in countless situations, from quickly summing a check, to determining the total addressable market for a new product line. Envelope Math can help you practice your estimation skills and number sense with numbers both large and small, so you're ready to evaluate the nitty gritty whenever you need to.

App Privacy

The developer, Gregory Papakyriakou, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Supports

  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer