Math problem right but wrong

[Papas1982]

My god. So many people arguing demonstrably incorrect things.

It is 3+3+3+3+3 simply because the rules of repeated addition say that the first number is how many sets you have and the second number is how many are in each set.

How it reads to you is entirely irrelevant as you didn't define the rules!

Stuff like this is embarrassing.

Exactly that.

I was taught x meant times. So if have written 3 3 3 3 3 as it's 5 times 3.

That said, I don't like the way maths is taught now. Kids getting correct marks for part a question. Would love to see that in the real world. Sorry Mr taxman. I know I underdeclared significantly, but if you check my workings I got it all right except the initial 20% where I used 2% 😤

 

[Captainron]

How the hell would anyone on this golf forum know what five consecutive 3s are?

He's down for 3 consecutive 5 pointers!! He needs a cut!

 

[Foxholer]

Seen this one while perusing the net.

In the US an elementary student was asked to - "Use the repeated addition strategy to solve: 5 x 3"

The student wrote

5x3 = 15 5+5+5

The student had the problem marked as incorrect, the correct answer being stated as 3+3+3+3+3

Was the incorrect answer a bit harsh?

For me, while the student has provided the correct solution, they did not provide the correct answer to the question being asked.

Indeed, the answer given was 'incorrect'!

The 'repeated addition strategy' for a * b is defined as 'b + ...' a times! Not 'a +...' b times!

However, if arrays have also been introduced as part of the lessons, they give an excellent intro to the commutative principle!

Whether the 'wrong' answer should be awarded -1 is debatable. There's certainly an argument for marking it as 0, because the principle of 'repeated addition' was recognised.

 

[Imurg]

And I wonder why I had to retake Maths O level......
Have we got the right number at the end?
15?
Yeah - move on....

 

[chrisd]

Easy peasy, just one question - is this pre decimalisation?

 

[williamalex1]

Seen this one while perusing the net.

In the US an elementary student was asked to - "Use the repeated addition strategy to solve: 5 x 3"

The student wrote

5x3 = 15 5+5+5

The student had the problem marked as incorrect, the correct answer being stated as 3+3+3+3+3

Was the incorrect answer a bit harsh?

For me, while the student has provided the correct solution, they did not provide the correct answer to the question being asked.

1 foot 3".