In the tens table you add the start value on the left to the number on top.
For each cell you check which number is on the left and which is on top.
Example: On the left is 20, on top is 30. You work out 20 plus 30 equals 50.
You write the answer 50 into the cell.
The green numbers show the answer.
Example
- 20, 30, 40
- 30, 40, 50
- 40, 50, 60
For parents
What does this exercise practice?
Add tens numbers confidently and write the results into a table.
Common pitfalls
Some children only add the tens digits. Always add the whole start value on the left to the whole number on top.
How to practice at home
Draw a small table with tens numbers and fill it in together cell by cell.
Related: Plus table, Skip counting