What Are Compatible Numbers Examples?

What Are Compatible Numbers Examples? Compatible numbers are pairs of numbers that are easy to add, subtract, multiply, or divide mentally. When using estimation to approximate a calculation, replace actual numbers with compatible numbers. Example 1 (Addition) 500 + 300 = 800. … Example 2 (Subtraction) 19.4 − 3.8 = 15.6. … Example 3 (Multiplication)