Calculating across zero

Maths

What is the answer to the calculation 96 + 97 - 98?

Which of the calculations below have a sum of 61?

2 consecutive numbers have a sum of 31. What are the 2 numbers?

The sum of 2 consecutive numbers is equal to the smaller number multiplied by 3.

The sum of 3 consecutive numbers is equal to the larger number multiplied by 3.

The sum of 3 consecutive numbers is equal to the middle number multiplied by 2.

The sum of 3 consecutive numbers is equal to the middle number multiplied by 3.

3 consecutive numbers have a product of 6. What are the 3 numbers?

The sum of 4 consecutive numbers is equal to 26. What are they?

Which consecutive numbers below do not have the same sum as the others?