Adding Up in Chunks Decompose and associate number to add efficiently.
Adding Up in Chunks Decompose and associate number to add efficiently.
Feb 15, 2016
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 - PowerPoint PPT Presentation
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Adding Up in ChunksDecompose and associate number to add efficiently.
Category 1
16 + 1016 + 2016 + 4016 + 42
26 + 1026 + 3026 + 5026 + 53
24 + 1024 + 3024 + 5024 + 55
35 + 1035 + 2035 + 4035 + 42
32 + 1032 + 3032 + 5032 + 55
44 + 1044 + 2044 + 3044 + 35
46 + 2046 + 3046 + 5046 + 53
57 + 1057 + 2057 + 3057 + 33
53 + 2053 + 2553 + 4053 + 42
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
18 + 1018 + 1318 + 2018 + 23
16 + 2016 + 2516 + 3016 + 36
17 + 1017 + 1417 + 3017 + 35
29 + 1029 + 1529 + 2029 + 24
38 + 2038 + 2638 + 3038 + 33
45 + 3045 + 3845 + 4045 + 46
57 + 1057 + 1457 + 3057 + 36
65 + 3065 + 3665 + 5065 + 57
73 + 3073 + 3873 + 5073 + 58
Category 3
Adding multiples of tens and one hundred while keeping one number whole.
56 + 4056 + 50156 + 40156 + 43
256 + 100256 + 300256 + 340256 + 342
117 + 200117 + 400117 + 420117 + 426
37 + 4037 + 46237 + 40237 + 48
25 + 6025 + 66125 + 60125 + 68
47 + 8047 + 84247 + 70247 + 74
345 + 200345 + 400345 + 450345 + 457
134 + 100134 + 300134 + 380134 + 387
218 + 200218 + 400218 + 450218 + 456
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