小二甲班鄭奕杰 2梁良看有多長〉 (1) (8) 公分 (2) (13) 公分 數技,b三16業 1. 54-9 = 44+10-9 = 44+1 = 45 2. 23-4 = 13+10-4 = 13+6 = = 19 3. 31-9 = 21+10-9 = = 21+1 = 22 4. 41-8 = 31+10-8 = 31+2 = 33 5. 65-8 = 55+10-8 = 55+2 = 57 6. 62-5 = 52+10-5 = 52+5 = 57 7. 93-6 = 83+10-6 = = 83+4 = = 87 8. 51-9 = 41+10-9 = 41++1 = 42 9. 52-4 = 42+10-4 = 42+6 = 48 10. 33-7 = 23+10-7 = = 23+3 = 26 11. 66-9 = 56+10-9 = 56+1 = 57 12. 37-8 = 27+10-8 = = 27+2 = 29 13. 73-5 = 63+10-5 = = 63+5 = 68 14. 55-9 = 45+10-9 = 45+1 = 46 15. 95-7 = 85+10-7 = = 85+3 = 88 16. 65-7 = 55+10-7 = = 55+3 = 58 17. 74-5 = 64+10-5 = 64+5 = 69 18. 33-7 = 23+10-7 = 23+3 = 26 19. 94-9 = 84+10-9 = = 84+1 = 85 20. 71-4 = 61+10-4 = 61+6 = 67 21. 65-6 = 55+10-6 = = 55+4 = 59 22. 72-4 = 62+10-4 = 62+6 = 68 23. 43-6 = 33+10-6 = 33+4 = 37 24. 63-9 = 53+10-9 = 53+1 = 54 數技,b三17業 1. 83-7 = 73+10-7 = = 73+3 = 76 2. 52-3 = 42+10-3 = 42+7 = 49 3. 55-8 = 45+10-8 = 45+2 = 47 4. 62-6 = 52+10-6 = 52+4 = 56 5. 61-2 = 51+10-2 = =51+8 = 59 6. 81-2 = 71+10-2 = == 71+8 = 79 7. 92-4 = 82+10-4 = 82+6 = 88 8. 56-9 = 46+10-9 = 46+1 = 47 9. 65-9 = 55+10-9 = 55+1 = 56 10. 65-8 = 55+10-8 = 55+2 = 57 11. 63-7 = 53+10-7 = 53+3 = 56 12. 64-8 = 54+10-8 = 54+2 = 56 13. 62-8 = 52+10-8 = 52+2 = 54 14. 37-9 = 27+10-9 = 27+1 = 28 15. 72-8 = 62+10-8 = 62+2 = 64 16. 95-9 = 85+10-9 = 85+1 = 86 17. 28-9 = 18+10-9 = 18+1 = 19 18. 93-4 = 83+10-4 = 83+6 = 89 19. 24-9 = 14+10-9 = 14+1 = 15 20. 17-9 = 7+10-9 = 7+1 = 8 21. 92-6 = 82+10-6 = 82+4 = 86 22. 61-9 = 51+10-9 = 51+1 = 52 23. 56-7 = 46+10-7 = 46+3 = 49 24. 23-6 = 13+10-6 = 13+4 = 17 |
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