Question

__________+500+700=1,300

Answer 1

To find the missing number in the equation __________ + 500 + 700 = 1,300, we can set up the equation as follows:

Let \( x \) be the missing number.

So, the equation becomes:
\[
x + 500 + 700 = 1,300
\]

Now, combine 500 and 700:
\[
x + 1,200 = 1,300
\]

Next, subtract 1,200 from both sides to solve for \( x \):
\[
x = 1,300 - 1,200
\]
\[
x = 100
\]

Therefore, the missing number is **100**.