Place Value Blocks
Number Line
Partial Differences/Break Apart
Compensation
100s Chart
100

82-25

57

100

70-36

34

100

84-68

16

100

42-18

24

100

44-22

22

200

66-29

37

200

88-59

29

200

92-59

33

200

96-55

41

200

51-19

32

300

60-36

24

300

87-29

58

300

77-28

49

300

61-39

22

300

62-26

36

400

85-24

61

400

64-28

36

400

90-36

54

400

52-39

13

400

87-29

58

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