'Chunksdecompose' presentation slideshows

Adding Up in Chunks Decompose and associate number to add efficiently.

Adding Up in Chunks Decompose and associate number to add efficiently. Category 1. 16 + 10 16 + 20 16 + 40 16 + 42. 2 6 + 10 2 6 + 30 2 6 + 50 2 6 + 53. 2 4 + 10 2 4 + 30 2 4 + 50 2 4 + 55. 35 + 10 35 + 20 35 + 40 35 + 42. 32 + 10 32 + 30 32 + 50 32 + 55. 44 + 10

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