Summary of all upper and lower boundary calculations
Adding `A+B`
Upper boundary `=` Maximum boundary for each
Lower boundary `=` Minimum boundary for each
Subtracting `A-B`
Upper boundary `=` Biggest difference between the two
Lower boundary `=` Smallest difference between the two
Multiplying `AtimesB`
Use the same as adding
Dividing `AdivB`
Use the same as subtracting
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-log-table-1.4df6ee6.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-log-table-2.d516bb3.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-anti-log-table-1.b0b0513.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-anti-log-table-2.f89189d.jpg)