Breaking Each Number into Its Place Value

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Presentation transcript:

Breaking Each Number into Its Place Value

Smaller two-digit numbers that do not require regrouping. Category 1 Smaller two-digit numbers that do not require regrouping.

10 + 10 10 + 11 12 + 13 14 + 15

12 + 17 15 + 14 13 + 16 11 + 17

10 + 20 11 + 22 14 + 23 15 + 21

20 + 20 23 + 25 25 + 21 22 + 26

10 + 30 13 + 31 33 + 16 18 + 31

28 + 11 14 + 35 22 + 15 18 + 31

36 + 22 12 + 37 13 + 14 24 + 32

18 + 31 23 + 14 37 + 12 32 + 25

Category 2 Encourage students to combing the ten from the ones column with the tens from the ten column.

10 + 10 + 10 13 + 17 18 + 12 16 + 14

13 + 18 16 + 15 17 + 14 12 + 19

15 + 18 17 + 16 14 + 18 15 + 17

15 + 27 23 + 18 17 + 25 16 + 27

22 + 18 15 + 26 17 + 28 16 + 26

26 + 28 23 + 27 27 + 25 28 + 24

25 + 35 32 + 28 36 + 27 26 + 24

17 + 33 24 + 38 36 + 27 26 + 24

27 + 15 35 + 26 17 + 33 25 + 38

Numbers of greater magnitude Category 3 Numbers of greater magnitude

38 + 58 67 + 17 44 + 38 25 + 66

58 + 26 34 + 57 78 + 25 39 + 46

18 + 42 27 + 66 35 + 48 62 + 28

13 + 58 47 + 16 36 + 25 73 + 18

53 + 28 44 + 18 36 + 38 17 + 55

42 + 28 63 + 18 55 + 27 34 + 26

74 + 18 58 + 28 37 + 26 46 + 38

26 + 45 38 + 17 28 + 32 53 + 38

37 + 38 28 + 47 66 + 28 45 + 47