At the top there is a target sum, for example 6.
On each domino add up the dots of both fields.
If the domino makes the target sum, tick the box below it.
Some dominoes fit, others do not. Check every one.
The filled-in example below shows which dominoes fit.
Example
- 1 + 4, 2 + 3, 5 + 0, 4 + 1
For parents
What does this exercise practice?
Searching for all matching dominoes practices decomposing a number into addends systematically and builds stamina for careful checking.
Common pitfalls
Some children stop at the first matching domino. But all matching dominoes should be found.
How to practice at home
Spread out real dominoes and together pick out all tiles with a certain dot sum.
Related: Dominoes, Break apart