This worksheet can be used during whole-group instruction while modeling how to use the number line as a tool for solving addition problems. A whole-group discussion can be done first while modeling how to use this strategy on a poster chart. Students can then do this worksheet as independent work and choose their own pair of numbers to work with. It can also be used with a small group with a targeted group of numbers.
Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g., 5 = 2 + 3 and 5 = 4 + 1).