Post on 31-Mar-2015
Adding Up In Chunks
Category 1Adding multiples of ten to any number
7 + 107 + 207 + 307 + 40
15 + 1015 + 2015 + 3015 + 40
19 + 1019 + 2019 + 3019 + 40
23 + 1023 + 2023 + 4023 + 50
36 + 1036 + 3036 + 5036 + 60
39 + 2039 + 4039 + 3039 + 50
23 + 1023 + 5023 + 3023 + 40
55 + 1055 + 2055 + 3055 + 40
42 + 1042 + 2042 + 4042 + 50
Category 2Builds gradually from adding multiples often to a
number to adding in chunks
11 + 1011 + 2011 + 3011 + 33
16 + 1016 + 2016 + 4016 + 42
24 + 1024 + 3024 + 5024 + 55
26 + 1026 + 3026 + 5026 + 53
35 + 1035 + 1435 + 2035 + 25
57 + 1057 + 2057 + 3057 + 33
44 + 1044 + 1244 + 3044 + 35
53 + 2053 + 2553 + 4053 + 42
Category 3Add up in chunks and then break apart the 1’s into
friendly combinations.Example: 28 + 24 = 28 + 20 + 48 +2 +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
17 + 2528 + 2436 + 3837 + 35
44 + 2748 + 3455 + 1658 + 25