Brain work

[Laura PourMeADrink]

[Ptah]

1. 15

[Ptah]

12. 5 + (1 x 10) 15

[Laura PourMeADrink]

37. Spoiler alert ****

You were right!!!!

[Ptah]

38. You should question the thinking of whoever told you differently.

[Laura PourMeADrink]

43. Evidently there is no official answer.

[Ptah]

53. Those sound like weasel words.

[Sanity Claws]

13. That's what I think too.

I was taught MDAS for order of operations.
5 + (1x10) =15

If it is something else, I'd like an explanation.
Maybe the answer is "heart attack."

[Laura PourMeADrink]

36. Spoiler alert ****

You were right!!!

[EYESORE 9001]

2. 36

[Laura PourMeADrink]

5. No, sorry

[we can do it]

3. 25

[tblue37]

6. 16.

[tblue37]

10. ? 5 + 1 + 10.

[we can do it]

9. 70

[LakeArenal]

15. 70 for me too.

Last edited Mon Mar 27, 2023, 07:48 PM - Edit history (1)

I guess I didn’t see that there were four fries in the mix in line three.

[Nittersing]

20. That's what I get too

[targetpractice]

11. 60

[EYESORE 9001]

14. 21

[msdogi]

16. 17 is wrong

Last edited Mon Mar 27, 2023, 02:32 PM - Edit history (1)

missed multiply, not add
it's 70

[ProfessorGAC]

18. I Get 25 Cents

3 cokes are 30, so 10 cents a piece.
A coke & 2 burgers is 20. 20 minus 10 is 10, 10 divided by 2 burgers is 5 cents a piece.
Burger & 2 chips are 9, so chips are 2 cents a piece
A burgers plus (chips TIMES a coke) is 5 + (2 × 10) or 5 +20 = 25.

[sl8]

22. I see "Burger + 4 chips equals 9"

The burger is combined with 2 pairs of chips.

[ProfessorGAC]

23. You Are Correct

I missed the doubled up chips. My bad.
That sure changes it, doesn't it?

[sl8]

26. I almost did the same thing.

I figured the answer as 15. I'm curious as to why that's wrong.

[ProfessorGAC]

28. With Your Heads Up...

...I get that, too.

[Laura PourMeADrink]

32. Spoiler alert ****

You were right all along!!!

[sl8]

33. Thanks! nt

[rsdsharp]

21. 60

(5+1)x10=60.

[Laura PourMeADrink]

24. Why are you adding 1 ?

[Laura PourMeADrink]

25. Duh - single bag

[ProfessorGAC]

27. Order Of Operations

Multiplication/Division always comes before addition/subtraction, unless the subordinate operation is in parentheses. The mnemonic is PEMDAS. (Parentheses, Exponents, Multiplication/Division, Addition/Substration.)
So, it's 5 plus 1 times 10.
I got it wrong because I didn't notice it was 2 pairs of chips, not 2 chips.

[Sanity Claws]

29. So under Order of Operations,

You multiply 1 times 10, which equals 10.
You then add 5. So total is 15. Right?

[ProfessorGAC]

30. That's What I Get

So did Si8. But, Si8 was told that's wrong. We don't get why.
But yes, based on PEMDAS, it would be 15, assuming we're not missing something like I did with the pairs of chips.

[Laura PourMeADrink]

31. Spoiler alert ****

You and whoever said




15 are right !!?!!!



I screwed up majorly and believed someone . Sorry!!!!


BTW, you'd never try and add the hamburger 5 to the chips 1, correct? Which would equal 16. (10x1) + 5+1

[ProfessorGAC]

34. Correct

The chips were used up in multiplying it by the Coke.
If we added them to the 5, we'd be using it twice.

[Laura PourMeADrink]

35. Lol. Thanks for dumbing it down :) ( "used up" ) nt

[ProfessorGAC]

41. As You Probably Know...

...my wintertime occupier of time is subbing math & science.
6th and/or 7th grade go through order of operations.
So, I've been specifically trying to get it understood in a way 11 - 13 year old kids would get.
Not dumbing down, but definitely simplifying.

[Laura PourMeADrink]

45. Great exercise for them! Who knew PEMDAS rules apply

even when no parentheses! Plus observation

[Laura PourMeADrink]

46. Plus simple Algebra!

[ProfessorGAC]

48. Yep!

Especially the 8th graders. That, and a lot of coordinate mapping.

[Harker]

39. 3 lb.? n/t

[IcyPeas]

40. pancakes

[cksmithy]

42. 70

10+10+10=30
10+5+5=20
5+2+2=9
5+2x10=70

[Laura PourMeADrink]

44. Evidentially you are supposed to do the multiplication first

And it's not 2 but one. Look at pic again.

[Elessar Zappa]

50. 15?

[Laura PourMeADrink]

51. +1