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47 - 23 =

28 - 23 = 5

58 - 34 =

77 - 25 = 52

28 - 23 =

47 - 23 = 24

77 - 25 =

58 - 34 = 24

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87 - 34 =

45 - 21 = 24

48 - 32 =

32 - 31 = 1

45 - 21 =

87 - 34 = 53

32 - 31 =

48 - 32 = 16

------ End of Page 2 ------

87 - 43 =

76 - 10 = 66

96 - 54 =

88 - 57 = 31

76 - 10 =

87 - 43 = 44

88 - 57 =

96 - 54 = 42

------ End of Page 3 ------

45 - 22 =

89 - 56 = 33

57 - 51 =

68 - 32 = 36

89 - 56 =

45 - 22 = 23

68 - 32 =

57 - 51 = 6

------ End of Page 4 ------

56 - 43 =

57 - 37 = 20

25 - 14 =

88 - 57 = 31

57 - 37 =

56 - 43 = 13

88 - 57 =

25 - 14 = 11

------ End of Page 5 ------

62 - 21 =

54 - 23 = 31

43 - 23 =

78 - 45 = 33

54 - 23 =

62 - 21 = 41

78 - 45 =

43 - 23 = 20

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The Addition and subtraction Flashcard shown above is aligned with standard 3NBT02 taken from the Common Core Standards For Mathematics (see the extract below) as are the resources listed below.

*Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction. *

- 2-digit + 1-digit - no regrouping e.g. 34 + 5
- 2-digit + 2-digit - no regrouping e.g. 42 + 36
- 2 digit - 1 digit (no regrouping) e.g. 38 - 5

- 3-digit - 2-digit numbers e.g. 145 - 52
- 3-digit - 2-digit numbers e.g. 145 - 57
- 3-digit - 3-digit numbers e.g. 345 - 167
- 3-digit sums e.g. 45 + 82
- 3-digit sums (carrying tens) e.g. 68 + 56

Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome:

*Use place value understanding and properties of operations to perform multi-digit arithmetic*

- Multiplying By Multiples of 10 (From Examples/ Guidance)
- How To Round To The Nearest 10 (From Examples/ Guidance)
- Rounding Numbers To The Nearest Hundred (From Examples/ Guidance)
- Multiplying by Multiples of 10 (e.g. 50 x 7) (From Worksheets)
- Multiplication Bingo (with multiples of 10) (From Worksheets)
- Rounding to the Nearest 10 & 100 To the nearest 10 and/ or 100 (From Worksheets)
- Rounding numbers to nearest 10 (From Worksheets)
- Rounding numbers to nearest 100 (From Worksheets)