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20以内的进位加法与退位减法习题一


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16 8 18 6 15 6 17 8 14 6 14 8 17 8 17 8 17 9 16 8 17 2 17 8 16 8 16 4 15 8 15 2 15 8

+ + + + + + + + + + + + + + + + +

7 9 9 6 6 7 8 8 8 7 9 6 9 7 9 8 9 6 8 6 9 9 8 8 8 6 8 7 6 6 8 9 7 8

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

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16 7 18 9 13 7 12 8 13 9 14 8 15 6 13 9 11 8 16 7 11 7 16 9 15 9 16 6 15 6 14 8 11 7

+ + + + + + + + + + + + + + + + +

7 4 9 8 6 7 6 8 8 6 6 7 7 8 9 4 2 6 9 8 2 8 7 4 9 8 9 6 8 6 5 6 8 6

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102

12 2 17 4 11 6 15 6 17 4 15 8 14 8 11 4 14 8 15 8 16 10 17 6 12 8 14 8 18 6 12 8 17 6

+ + + + + + + + + + + + + + + + +

8 9 8 6 5 7 9 8 8 7 7 8 9 7 2 9 8 7 7 6 9 6 8 6 9 8 8 7 9 6 3 6 9 8

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

17 6 16 9 13 4 15 6 15 8 18 6 18 4 13 6 13 4 12 2 12 10 11 4 11 8 18 8 15 8 14 6 15 6

+ + + + + + + + + + + + + + + + +

9 8 8 6 8 7 6 6 6 8 9 6 9 8 5 6 4 6 5 9 7 6 4 8 4 8 9 8 8 7 9 6 8 9

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

15 6 16 9 11 8 16 9 17 9 15 7 18 7 13 9 13 9 12 7 17 8 18 6 13 8 17 9 11 8 15 6 13 7

- 9= + 10 = - 7= + 4= - 7= + 4= - 8= + 2= - 8= + 6= - 9= + 4= - 9= + 4= - 4= + 8= - 8= + 2= - 6= + 8= - 9= + 6= - 9= + 8= - 9= + 4= - 8= + 6= - 2= + 4= - 7= + 4= - 6= + 7=

69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102

15 6 17 6 14 4 18 6 14 4 16 8 18 8 14 8 15 6 11 8 12 8 18 9 11 8 17 6 18 4 15 5 15 4

+ + + + + + + + + + + + + + + + +

8 9 8 8 8 9 9 7 6 7 8 7 9 6 7 8 9 9 8 6 3 8 9 6 6 6 8 9 9 8 8 9 7 8

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

11 6 12 2 16 8 12 4 18 4 11 4 12 4 13 4 13 6 17 6 12 6 15 6 17 6 14 9 17 6 13 8 16 6

+ + + + + + + + + + + + + + + + +

7 8 5 9 7 9 9 9 9 9 9 8 7 8 5 9 5 7 9 7 4 9 9 9 8 7 6 9 8 9 8 7 8 8

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

11 7 13 7 13 8 18 8 15 9 15 7 13 8 15 7 13 6 15 7 13 7 16 9 15 9 12 8 17 6 15 8 13 8

+ + + + + + + + + + + + + + + + +

9 6 4 5 6 8 9 8 6 8 6 7 7 6 8 9 8 6 8 8 9 8 7 4 7 6 3 6 8 5 6 4 8 6

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102

17 6 17 8 14 6 11 6 16 6 15 4 18 6 17 4 14 8 17 4 15 4 13 8 15 8 16 6 11 8 17 6 11 8

+ + + + + + + + + + + + + + + + +

9 9 8 6 8 8 9 6 7 9 6 8 9 8 9 6 9 6 9 8 8 7 4 8 6 9 7 6 8 8 9 8 9 6

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

11 4 15 6 12 6 11 8 12 6 14 6 12 6 15 6 18 8 13 8 18 4 11 4 11 8 13 8 15 6 13 8 14 5

+ + + + + + + + + + + + + + + + +

9 6 7 6 7 8 5 6 3 6 9 9 5 8 9 8 9 8 4 8 9 7 8 8 7 6 5 9 9 7 9 9 7 8

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

12 7 15 8 14 6 18 7 13 8 16 6 15 7 15 8 14 7 14 9 11 8 11 9 14 6 15 9 13 8 11 9 13 8

+ + + + + + + + + + + + + + + + +

8 8 8 4 9 6 9 8 8 6 8 9 9 4 7 6 7 4 8 9 5 4 9 6 7 6 7 6 9 4 9 8 4 6

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102

16 8 12 2 13 8 18 8 18 8 12 4 12 6 13 8 13 8 12 9 12 8 12 8 16 8 15 8 14 6 15 4 17 8

+ + + + + + + + + + + + + + + + +

8 6 9 9 5 7 9 9 9 7 7 7 9 6 9 6 8 8 3 7 9 6 9 9 8 9 6 6 8 7 7 8 9 7

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =


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