You can get it here Easier to start at the left: e.g+=+[74] +[82]. Children need to write down on paper what happens after number is added on the abacus Some of the worksheets for this concept are Abacus work for gradepdf, Levelname, Abacus work for levelwith answers, Addition story problems for grade 1, Rightstart mathematics, Abacus work with answer, Level, The abacus handbook You need the FREE Acrobat Reader to view and print PDF files. Through interactive without using abacus do not hold aba