Find the SUM
addition · adding two-digit numbers with sums to 200
To add 2 two-digit numbers - sums to 200 [2.NBT.B.7].
Find the SUM is a Grade 2 addition game that uses pairs of dominoes to build two-digit numbers. Students read each domino as tens and ones, form two numbers, add them, and record a sum that can reach 200. The physical representation keeps place value visible while students practice two-digit addition across changing number combinations.
Use it for partner or small-group review when students need to connect tens-and-ones thinking with addition. Listen for how students compose each number and whether they can explain regrouping when it occurs. Generate teacher-ready lesson support for Find the SUM with a free Find a Math Game account. No credit card is required, and you get 3 lifetime lesson generations.
- Grades:
- 2
- Players:
- 2 or more players
- Materials:
- cards, dominoes
- Classroom use:
- small group, partner work
Standards alignment
Official Rules
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