Question

(c)(+5)+(-8)=(+5)+(-5)+(-3)=0+(-3)​

Answer 1

Answer:

Eight equal parts were made out of a circular pizza (loaf). I ate 5

8

part of it.

How many pieces are left?

Answer 2

Answer:

The answer is 34.

As we can see that in the first sum we have given the sum 1+4 and it's genuine answer is 5 according to the defined addition rule but if we will add 0 to 5 , then also the answer will be the same.Hence the sequence goes as such

1+4= 5+0=5

Now we will keep adding ‘the result which we have got in the preceding sum’ to the genuine answer which we are getting on adding the two given numbers.

So , 2+5 gives it's genuine answer as 7 but on adding 5 to it which we have got as result in the preceding sum(1st sum) ,we will get :

2+5=7+5=12

Hence ,we can generalise the formula as:

Let the given numbers whose sum is to be found are ‘a’ and ‘b’ where a is the 1st number and b is the second number, then

a+b = genuine answer according to normal addition rule+ result of the preceding sum

For 1st sum we have taken ‘0’ as the result of the preceding sum. Therefore in 3rd sum:

3+6=9 (genuine answer )+12 (result of the 2nd sum)=21

Hence , 5+8= 13 (genuine answer )+ 21 (result of 3rd sum)=34.

Step-by-step explanation:

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