Question

In a club, 3 members bring all of the sandwitches for a picnic.
Mike and lynn arive together. They have allready put together mike's 3 sandwithces and Lynn's 5 sandwitches. Hosea comes a little later with 4 sandwitches. In all, the club has a total of 12 sandwitches.
write an addition expression that shows the grouping described above.
Then suppose

Answer 1

*already
*sandwiches

Answer 2

That mike had come first, alone, and that Lynn and hosea had come with their sandwitches later. Write an addition expression to represent this grouping.

Answer 3

Also Would the club's total number of sandwitches be the same with either grouping?

Answer 4

(3+5)+4=12

Answer 5

so this is an example of associativity. If they arrive together, the number of sandwiches arriving with the people who arrived together would be in brackets

Answer 6

the answer would always be twleve

Answer 7

yup, always twelve. that's what associativity means

Answer 8

(3+5)+4=12 thats right tho right?

Answer 9

right :-p

Answer 10

well, depending on who arrives together. I've not really read the nitty gritty bits of the question

Answer 11

Write an addition expression that shows the grouping described above. And write an additon expression to represent this grouping. ?

Answer 12

so if the people arrive together, put their sandwiches in brackets (you know what i mean)

Answer 13

ok so ( 3+5) +4 = 12

Answer 14

what abt the second part of the question?

Answer 15

?

Answer 16

just reorder the brackets

Answer 17

(5+4)+3=12