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Addition and Subtraction
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1 : Addition by Forward Counting and Addition on Number Line
2 : Addition on Abacus
3 : Caley's Table
4 : Addition by Regrouping
5 : Vertical Method of Addition
6 : Addition of Three Numbers and Interesting Facts About Addition
7 : Word Problems on Addition
8 : Subtraction by Backward Counting and Subtraction on Number Line
9 : Subtraction Using Abacus
10 : Subtraction by Regrouping
11 : Vertical Method of Subtraction
12 : Interesting Facts About Subtraction and Relation Between Addition and Subtraction
13 : Word Problems on Subtraction