FIND THE DIFFERENCE
subtraction · subtracting two-digit numbers with or without regrouping
To subtract 2 two-digit numbers with or without regrouping [2.NBT.B.5].
FIND THE DIFFERENCE is a Grade 2 subtraction game that uses dominoes to build two-digit numbers. Players interpret each domino as tens and ones, form two numbers, subtract the smaller from the larger, and record the difference. Because the numbers change with every draw, students get repeated practice subtracting two-digit numbers with and without regrouping from a hands-on representation.
Use it with partners or a small group when students are ready to connect place value to written subtraction. Ask them to explain how the domino dots became tens and ones and when regrouping was needed. Create a free Find a Math Game account to generate lesson support for FIND THE DIFFERENCE. No credit card; 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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