Adding Up In Chunks

Adding multiples of ten to any number Category 1 Adding multiples of ten to any number

7 + 10 7 + 20 7 + 30 7 + 40

15 + 10 15 + 20 15 + 30 15 + 40

19 + 10 19 + 20 19 + 30 19 + 40

23 + 10 23 + 20 23 + 40 23 + 50

36 + 10 36 + 30 36 + 50 36 + 60

39 + 20 39 + 40 39 + 30 39 + 50

23 + 10 23 + 50 23 + 30 23 + 40

55 + 10 55 + 20 55 + 30 55 + 40

42 + 10 42 + 20 42 + 40 42 + 50

Category 2 Builds gradually from adding multiples often to a number to adding in chunks

11 + 10 11 + 20 11 + 30 11 + 33

16 + 10 16 + 20 16 + 40 16 + 42

24 + 10 24 + 30 24 + 50 24 + 55

26 + 10 26 + 30 26 + 50 26 + 53

35 + 10 35 + 14 35 + 20 35 + 25

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

44 + 10 44 + 12 44 + 30 44 + 35

53 + 20 53 + 25 53 + 40 53 + 42

Category 3 Add up in chunks and then break apart the 1’s into friendly combinations. Example: 28 + 24 = 28 + 20 + 48 +2 +2 = 52

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

16 + 20 16 + 25 16 + 30 16 + 36

17 + 10 17 + 14 17 + 30 17 + 35

29 + 10 29 + 15 29 + 20 29 + 24

38 + 20 38 + 26 38 + 30 38 + 33

45 + 30 45 + 38 45 + 40 45 + 46

57 + 10 57 + 14 57 + 30 57 + 36

17 + 25 28 + 24 36 + 38 37 + 35

44 + 27 48 + 34 55 + 16 58 + 25