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UNIVERSIDAD GALILEO

Escuela Técnica

Matemática Básica

HOJA DE TRABAJO #

1. 27 + 3 × 5 – 16 =

2. 20 + 5 × 38 =

3. 27 + 3 – 45 ÷ 5 + 16 =

4. 50 ÷ 2 – 68 + 34 × 6 ÷ 3 =

5 . (2 × 4 + 12 ) (6 − 4 ) =

6 . 3 × 9 + (6 + 5 – 3) – 1 2 ÷ 4 =

7. 3.75 + [2 × (25.5 – 12.5)] =

8. 0.42 × 5 – 7 =

9. 22 + 3 × 4 – 14 ÷ 2 =

1 0. 2 + 5 × ( 2 · 3) ³ =

11. 230 – 4 × 52 + 14 =

12. 50 + 7 – (3 – 4) =

13. 4.6 + (2.5 × 5.4 + 3) =

1 4. 4 40 − [3 0 + 6 ( 19 − 1 2) ] =

15 . 2{4 [ 7 + 4 ( 5 × 3 − 9) ] − 3 ( 40 − 8 )} =

1 6. ( 3 − 8) + [ 5 − (− 2) ] =

17 . 5 − [ 6 − 2 − (1 − 8) − 3 + 6 ] + 5 =1 8. 9 ÷ [ 6 ÷ (− 2) ] =

19. [15 – (22 – 10 ÷ 2)] × [5 + (3 × 4 – 3)] =

20. 32 + 45 ÷ 3 (17 + 3 × 4) + 23 – 8 =

21. 125 – (13 + 14 ÷ 2) × 2 =

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22. (45 ÷ 9)2 – 7 + 3 =

23. 112 – 60 × 2 + √ 16  + 20 ÷ 5 =

24.   √ 100  – 2000 ÷ 100 + 2 × 5 =

25. [(− 2) 5  − (−3) 3 ] 2  =

26 . ( 5 + 3 × 2 ÷ 6 − 4 ) × ( 4 ÷ 2 − 3 + 6 ) ÷ (7 − 8 ÷ 2 − 2 ) 2  =

27. [(17 − 15) 3  + (7 − 12) 2 ] ÷ [ (6 − 7) × (12 − 23)] =

2 8. 7 × 3 + [ 6 + 2 × ( 23  ÷ 4 + 3 × 2) – 7 × √ 4 ] + 9 ÷ 3 =

29. 14 − {7 + 4 × 3 - [ ( -2) 2  × 2 - 6]}+ (2 2  + 6 - 5 × 3) + 3 - (5 - 2 3  ÷

2) =