



 
Hi Susan, It's not the rules of operation that are important it's that the mathematical expression be written in a way that is clear to the reader. I read what you have written as
The convention (rule) you need here is that multiplication is performed before addition. Hence the first quantity is
Adding 40 and 6 gives 46. The second quantity is
Adding 6 and 24 gives 18. Thus you have 46 divided by 24 or
I hope this helps,  


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