What must be added to 750 to make 1000?

Answer 1

The question being:

? + 750 = 1,000

To find "?", you use the opposite operation.

Since the question is addition, you will use subtraction to find "?".

Take the answer (1,000) and subtract the known number (750) from it.

1,000 - 750 = 250

Thus, ? = 250

The answer is 250.

Answer 2

Oh, dude, that's like basic math. You just need to subtract 750 from 1000, which gives you 250. So, you must add 250 to 750 to make 1000. Easy peasy lemon squeezy!