In this worksheet you must find the missing number in a sum.
Example
Find the number that makes the sum correct.
4740 + __ = 6000
Answer
The opposite (inverse) of adding is subtracting.
So we work out 6000 - 4740 = 1260
Here is another example
2365 + ___ = 4000
Use the inverse operation to solve.
4000 - 2365 = 1635