Students solve the decimal problems by adding them. The sum is connected to the problem to produce a long line.
This activity is also part of the Decimal Computation Dominoes Bundle. This bundle has domino activities for: Adding Decimals, Subtracting Decimals, Multiplying Decimals, and Dividing Decimals. The bundle is cheaper than purchasing separately. Also, the bundle has another dominoes activity (Mixture of Decimal Computation Dominoes) that cannot be purchased separately. All 5 activities are only $3.50. You can view this bundle at: http://www.teacherspayteachers.com/Product/Decimal-Computation-Dominoes-Bundle-1493396.
You can also purchase my Math Dominoes Bundle at https://www.teacherspayteachers.com/Product/Dominoes-Math-Game-Bundle-3366732 for $9.99. You will receive all of my current and future math dominoes games.