A poster showing the combinations of 20.
Use this poster in your classroom to show your students visually the numbers that add together to make 20.
Common Core Curriculum alignment
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
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