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