Compatible Numbers

Compatible numbers are numbers that are easy to work with mentally. When performing calculations, using compatible numbers can make the process faster and more efficient.

How to Find Compatible Numbers

To find compatible numbers, look for numbers that are easy to work with in a given calculation. This can include numbers that end in zero or five, or numbers that are close to each other.

Example

When calculating 48 ÷ 6, you can use the compatible numbers 50 and 6 instead. 50 is close to 48 and is easier to work with than 48. 6 is the divisor, which is also easy to work with. This makes the calculation simpler and quicker to solve mentally.

Study Guide

Here are some tips for finding and using compatible numbers:

Look for numbers that end in zero or five as potential compatible numbers.
Estimate numbers to find compatible numbers that are close to the given numbers in a calculation.
Use compatible numbers to simplify calculations, especially when performing mental math.

Practice using compatible numbers in various arithmetic operations such as addition, subtraction, multiplication, and division to become more comfortable and proficient with this concept.

Understanding compatible numbers can help improve mental math skills and make mathematical calculations easier and more efficient.

◂Math Worksheets and Study Guides Sixth Grade. Tables

The resources above cover the following skills:

Data Analysis and Probability (NCTM)

Select and use appropriate statistical methods to analyze data.

Discuss and understand the correspondence between data sets and their graphical representations, especially histograms, stem-and-leaf plots, box plots, and scatterplots.