Question

lisa is trying to determine how many kilometers she traveled this week. Estimate the total number of kilometers she traveled.
Lisa traveled five days this week:
~32km
~51km
~48km
~22km
~39km

Answer 1

@Directrix

Answer 2

do i add them all together and then divide?

Answer 3

That would give an exact answer.

I think the idea of estimating an answer is like this .....

Answer 4

32km ---> Call this 30

~51km --> 50

~48km 50

~22km 20
-------

Answer 5

The idea is that it is easier to add multiplies of 10.

Answer 6

What is the sum of the round-offs and round-ups?

Answer 7

i got 30 and that isnt any of the answers

Answer 8

The sum is 150 so you've already divided by 5 and got 30. Let me read the question again.

Answer 9

I don't think we should divide by 5.

Answer 10

yeah

Answer 11

Estimate the total number of kilometers she traveled.

The question does not ask the average number of km traveled per day

So, I would go with the 150 km with the estimated number of km traveled.

Answer 12

What do you think?

Answer 13

hmmm

Answer 14

@mcnabkt Is there a 150 km answer option?

Answer 15

it doesnt have answers

Answer 16

you have to guess them

Answer 17

oh wait

Answer 18

But, when you got 30, you said this:

>>>i got 30 and that isnt any of the answers

Answer 19

theres 160 km
170 km
180 km
190 km

Answer 20

From those options, I would go with the 160 although I think 150 would have made a better option.

Answer 21

no its wrong

Answer 22

I'm attaching how I did the estimating.

Answer 23

Why not add all the given?

Answer 24

would equal to 192

Answer 25

@yamyam70 We're supposed to be estimating.

Answer 26

so be it , 190

Answer 27

? I can be wrong though

Answer 28

It is MY error. I left off one of the mileages.

Answer 29

oh yeah, didnt notice that just now

Answer 30

32km ---> Call this 30

~51km --> 50

~48km 50

~22km 20

~39km 40 ----> This is the one I left off

@mcnabkt I apologize for messing up your problem.

Answer 31

So, the estimations total 160 km

Answer 32

>> would equal to 192 How did you get this

Answer 33

@yamyam70 ^^^^^

Answer 34

32km - 30
~51km - 50
~48km - 50
~22km - 20
~39km - 40

= 190

Answer 35

@Directrix , you skip a mileage

Answer 36

This reloading is getting on my nerves.

Attached is my revised work:

Answer 37

So, 190 is the estimated sum of the mileages for the week.

Answer 38

^^^ 190 :)

Answer 39

I feel bad that I overlooked a mileage and caused the Asker to miss the question.

Answer 40

it happens when we are hungry, happens to me alot lol

Answer 41

or too much study.. it sucks , nights :)