The only way I can think of to do that will be going "the long way around" and will require knowing how many km you have driven in between driving for work.
Yes it is long, laborious, and detailed, but I can't think of any other way to do the thing.
And if word problems aren't your math thing, I'm sorry, I know of no other way to explain and show what all needs to go in to this.
Example for illustration purposes;
Let's say your notes have that your work driving was 8km, 12km, 7km, 22km, for the 4 days you worked that week.
And looking at where you went on days off you probably put 40km on the car during your days off.
Now, how far is it from work to home? Does work mileage include that?
You said you don't go by the office much, is there an outlying location that you work from?
Home to work distance would then be measured to there.
For the purposes of illustration, and to make an easy number, let's say it is 5km one-way between work and home.
Okay, so, ...
1.)
We know that for the week you used 5km per day to get to work & 5km per day to get home from work.
You worked 4 days.
Total, 40km to and from work.
2.)
We know that your delivery driving total for the 4 days you worked adds up to 8+12+7+22 =
49km
3.)
On your days off it looks like you put 40km on the car.
4.)
So, total km accumulated since beginning job is = 40+49+40 = 129km
5.)
Subtract that from current km reading = approximately the odometer reading when starting the job that week.
For the purposes of illustration,
lets make current km reading 22,313.
subtract 129 from that,
odometer was approximately 22,184 when starting job.
6.)
Assuming the mileage between home and the job site doesn't count, we'll ad the 5km between home and job site to that,
and have a start of work day odometer reading of 22,189km.
7.)
Drove 8km first day of work, add that, making end of day reading 22,197km.
8.)
Ya went nowhere that night. was 5km home, then next moening, 5km to work, that makes 10km.
9.)
Alright then, odometer reading start of second work day would be approximately 22,197km +10km =
22,207 when you head out making the second day's deliveries.
10.)
the second day's deliveries were 12km, so
22,207 + 12 = 22,219 on odometer at end of second day.
so forth and so on.
That's my idea.
_________________
"There are a thousand things that can happen when you go light a rocket engine, and only one of them is good."
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