Almost 50 pages of math facts practice for facts to 20! This SEQUENCED packet includes plenty of practice for:+0 and -0+1 and -1+10 and -10DoublesNeighbors (Doubles +1)Facts to Ten+9 and -9+2 and -2LeftoversI have used these for differentiated instruction with my kiddos, printing out only what each child needs, as many times as needed. Systematic use of these worksheets for morning work has helped me discover why certain kiddos are making repeated errors. When I ask them to explain how they a