25 points and brainliest! Show calculations, draw conclusions from them and justify why you arrived at those calculation.

2

Step-by-step explanation:

1+1

Now this is an extremely tough problem as we have to find the answer without using a calculator.

If we remember traditional counting methods, the pattern goes as follows.

1, 2, 3

So if we take our first number of the equation (1) and go as many spaces forward on the number line as the second number (also 1), we arrive at our answer (2).

To check this problem, just subtract the second number from the answer and you should arrive with the first number.

2

1+1

Now this is an extremely tough problem as we have to find the answer without using a calculator.

If we remember traditional counting methods, the pattern goes as follows.

1, 2, 3

So if we take our first number of the equation (1) and go as many spaces forward on the number line as the second number (also 1), we arrive at our answer (2).

To check this problem, just subtract the second number from the answer and you should arrive with the first number.

Step-by-step explanation:

this is answer of 144 cubic meters