Flip for Math: Using Compatible Numbers to Estimate Division

Knowing how to use Compatible Numbers is very helpful when tackling a long division problem!

The purpose of a ‘We Flip for Math’ Flip Book, is to provide a struggling student with a step-by-step guide to take them through the process they are struggling with.

I have various flip books available in my classroom, but only after I’ve taught the concept and we have practiced it a number of times. The complexity of some skills can be quite challenging for many students. Being able to remember all the steps can become overwhelming for some. A flip-book can help walk these children through the process. In addition, I have found flip-books can be helpful when sending homework home . Including a flip book can make for very happy parents!

This packet contains a 3-part flip-book that focuses on using compatible numbers to estimate division .

• In the first section, the definition and examples of compatible numbers are given. Also, in the first section is a step-by-step guide for using compatible numbers to estimate division problems with a single-digit divisor.

• The second section, shows how to use compatible numbers to estimate division problems with a double-digit divisor.

• The third section, demonstrates how compatible numbers can be used to ‘jump-start’ the solving of a double-digit division problem.

• Also included is a 2-sided practice page. Answer key is also provided.