600+ __________=1,400

Answer 1

To find the missing number, you can set up the equation:

\[ 600 + x = 1400 \]

To solve for \( x \), subtract 600 from both sides:

\[ x = 1400 - 600 \]

\[ x = 800 \]

So, the answer is:

600 + 800 = 1,400