1.

48:8+32-54:9+7•8
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2. 6•7•2-72:8+2•9
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3. 17+64:8•4-63:7•2
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4. 6•6+30:5•2•4-39
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5. 45:5•3+16:2•5-7•4
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6. 100-6•2:3•9-6•9
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7. 40-72:9+4•4
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8. 3•9+9•7-64:8
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9. 81:9•8-3•8:4
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10. 8•7-16:4•7-19
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11. 27-4•3+5•4
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12. 8•2+35:5-4•5
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13. 6•3:2+7•7-36
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14. 2•(18+2):5-6
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15. 99-3•(18+12):5+24:4
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16. 63:9+(54-47)•6
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17. (14+3•7):7+37
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18. 48:8+(65-56)•5
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19. 60-(91-49):6-8•5
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20. (36:9+23)-3•6+20:5
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21. 32:8•7+9•(24-16)
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22. 34+5•(42:7)-(19+18)
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23. 7•7-(7•9-19)+6•4
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24. (8•7-63:9):7+6•8
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25. 7•(12-8):2+3•8
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26. (5•9-25):4+4•6
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27. 9•9-48:(39-33)•7
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28. 33+29-(83-34):7•3
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29. (37+29-18):6+35:7•5
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30. 9•(16-5)-54:9•8+7•6
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