What’s looks like a simple math (A+B) is not so simple.

Start simple math:

```
10 (result from query A)
+
10 (result from query B)
=
20 (expected result from math expression $A+$B)
```

Actually, result from query is timeseries (see query config `Format as: Time series`

) - there is list of values and each value represent some value in time, so it can be:

```
10 (result from query A at 2024-01-01 00:00:00)
+
10 (result from query B at 2024-01-01 00:00:00)
=
20 (expected result from math expression $A+$B at 2024-01-01 00:00:00)
```

But what if those values are from different times - what should be result of math expression - I would say this is undefined behaviour, because it is not possible to do a math:

```
10 (result from query A at 2023-01-01 00:00:00)
+
10 (result from query B at 2024-01-01 00:00:00)
=
???
```

There is link to Grafana doc, which is good to read:

With binary operations, such as

`$A + $B`

or`$A || $B`

, the operator is applied in the following ways depending on the type of data:If both

`$A`

and`$B`

are time series data, then the operation between each value in the two series is performed for each time stamp that exists in both`$A`

and`$B`

. The Resample operation can be used to line up time stamps. (Note:in the future, we plan to add options to the Math operation for different behaviors).

I highlight it: If both `$A`

and `$B`

are time series data, then the operation between each value in the two series is performed *for each time stamp that exists in both* `$A`

and `$B`

.

Editor has feature `Table view`

feature:

Use it and inspect/debug time series for each query and make sure you have values with right time stamps, when you want to perform math.

But I would say just don’t generate time series and it will be simple math as you expect.