At the top and on the left of the table there are numbers.
Combine the number from the row with the number from the column.
The result goes into the field where the row and column meet.
Example: On the left is 200, at the top is 300.
200 + 300 = 500, so 500 goes into the field.
The numbers filled in show the solution.
Example
For parents
What does this exercise practice?
Solve many similar tasks in a structured way and discover patterns in the results.
Common pitfalls
Children easily slip to the wrong row or column. Running a finger along the row and column helps to hit the right field.
How to practice at home
Draw a small table with two rows and two columns and let your child fill in the fields.
Related: Calculation, Number house