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

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  1. Adding Up in ChunksDecompose and associate number to add efficiently.

  2. Category 1

  3. 16 + 10 16 + 20 16 + 40 16 + 42

  4. 26 + 10 26 + 30 26 + 50 26 + 53

  5. 24 + 10 24 + 30 24 + 50 24 + 55

  6. 35 + 10 35 + 20 35 + 40 35 + 42

  7. 32 + 10 32 + 30 32 + 50 32 + 55

  8. 44 + 10 44 + 20 44 + 30 44 + 35

  9. 46 + 20 46 + 30 46 + 50 46 + 53

  10. 57 + 10 57 + 20 57 + 30 57 + 33

  11. 53 + 20 53 + 25 53 + 40 53 + 42

  12. Category 2 Adding multiples of tens while keeping on number whole and then breaking apart the ones into friendly combinations. Example: 28 + 24 could be “chunked” as 28 + 20 = 48; the 4 could be broken into 2 + 2 so that 48 + 2 = 50; 50 + 2 = 52

  13. 18 + 10 18 + 13 18 + 20 18 + 23

  14. 16 + 20 16 + 25 16 + 30 16 + 36

  15. 17 + 10 17 + 14 17 + 30 17 + 35

  16. 29 + 10 29 + 15 29 + 20 29 + 24

  17. 38 + 20 38 + 26 38 + 30 38 + 33

  18. 45 + 30 45 + 38 45 + 40 45 + 46

  19. 57 + 10 57 + 14 57 + 30 57 + 36

  20. 65 + 30 65 + 36 65 + 50 65 + 57

  21. 73 + 30 73 + 38 73 + 50 73 + 58

  22. Category 3 Adding multiples of tens and one hundred while keeping one number whole.

  23. 56 + 40 56 + 50 156 + 40 156 + 43

  24. 256 + 100 256 + 300 256 + 340 256 + 342

  25. 117 + 200 117 + 400 117 + 420 117 + 426

  26. 37 + 40 37 + 46 237 + 40 237 + 48

  27. 25 + 60 25 + 66 125 + 60 125 + 68

  28. 47 + 80 47 + 84 247 + 70 247 + 74

  29. 345 + 200 345 + 400 345 + 450 345 + 457

  30. 134 + 100 134 + 300 134 + 380 134 + 387

  31. 218 + 200 218 + 400 218 + 450 218 + 456

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