口算题51 - 35 =65 - 48 =52 - 49 =92 - 71 =71 - 16 =94 - 57 =39 - 7 =57 - 47 =93 - 27 =29 - 7 =口算题87 - 65 =67 - 1 =37 - 15 =95 - 73 =75 - 9 =55 - 45 =81 - 35 =17 - 15 =95 - 53 =89 - 75 =口算题55 - 25 =61 - 35 =97 - 15 =95 - 33 =75 - 69 =55 - 5 =41 - 36 =77 - 16 =96 - 13 =76 - 48 =
75 - 44 =24 - 11 =47 - 4 =84 - 83 =64 - 19 =55 - 44 =91 - 24 =27 - 4 =84 - 63 =99 - 64 =44 - 35 =71 - 24 =7 - 4 =84 - 43 =79 - 32 =47 - 12 =92 - 83 =72 - 19 =55 - 52 =91 - 32 =27 - 12 =92 - 63 =99 - 72 =52 - 35 =71 - 32 =12 - 7 =92 - 43 =79 - 73 =53 - 15 =51 - 33 =51 - 23 =67 - 1 =85 - 41 =21 - 21 =57 - 1 =93 - 81 =61 - 29 =65 - 41 =21 - 1 =37 - 1 =81 - 73 =61 - 9 =45 - 41 =81 - 21 =69 - 17 =53 - 49 =89 - 29 =25 - 9 =89 - 61 =97 - 69 =49 - 33 =69 - 29 =9 - 5 =89 - 41 =77 - 69 =49 - 13 =49 - 29 =85 - 10 =90 - 21 =70 - 57 =41 + 36 =13 + 72 =61 + 8 =49 + 44 =17 + 80 =57 + 16 =25 + 52 =5 + 88 =5 + 24 =17 + 60 =1 + 96 =41 + 32 =9 + 68 =17 + 4 =57 + 40 =1 + 76 =49 + 12 =29 + 48 =10 + 84 =18 + 20 =22 + 56 =2 + 92 =18 + 28 =34 + 64 =1 + 100 =18 + 68 =58 + 4 =38 + 40 =18 + 76 =58 + 12 =94 + 6 =12 + 74 =64 + 10 =26 + 46 =6 + 82 =66 + 18 =38 + 54 =4 + 90 =52 + 26 =24 + 62 =
2 + 98 =22 + 34 =14 + 70 =72 + 6 =34 + 42 =16 + 78 =48 + 14 =14 + 50 =10 + 86 =67 + 22 =
5 + 58 =3 + 94 =55 + 30 =15 + 66 =77 + 2 =3 + 38 =23 + 74 =15 + 10 =31 + 46 =11 + 82 =
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