Question

Complete this calculation 7.4+ --- =3.1

Answer 1

+ -4.3

Explanation:

To solve for the missing number, we can use this equation:

7.4 - 3.1 = 4.3

Now, we can insert that into the equation:

7.4 + -4.3 = 3.1

But, why is it a negative instead of a positive?

We convert 4.3 into a negative because if it was positive, the number would be getting bigger, not smaller.

Therefore, the calculation completed is 7.4 + -4.3 = 3.1.