In the table below all the rows and all the columns are supposed to add up to the same value 119. However someone has made a mistake and one of the numbers is wrong.

Find out which number is wrong and what it should be.

In the table below all the rows and all the columns are supposed to add up to the same value 256. However someone has made another mistake (!)and the chart is incomplete.

Find the missing numbers and fill in the gaps.

Term 2b unit 11- Puzzles and problems y5/6 ; Addition and subtraction