Curated OER
Addition Facts to 20: Copernicus Picture
In this addition facts learning exercise, students solve the 24 addition problems. Students color each problem space with the color indicated in the key. The result is a picture of Copernicus.
Curated OER
Addition Fact Worksheet- Level 2
In this addition facts worksheet, students solve 12 problems in which one or two digit numbers are added with sums up to 20. Problems are in a horizontal format.