1. 45-12+25-8
33 + 25 -8
58-8
50
2. 35+(25-16)-12
35+9 – 12
44 - 12
32
3. 6 + 8 x 5 : 4 – 2
6 + 40 : 4 – 2
6 + 10 – 2
16 – 2
4. 45 + ( 4 x 9 – 6 ) : 3 - (8 – 3)
45 + 30 : 3 – 5
45 + 10 – 5
55 – 5
50
5. 4. ( ( -2) + ( -4) ) =4. (-2 )+ 4 . ( -4)
=-8 + (-16)
= -24
6. 45 – 12 + 25 – 8
33 + 25 -8
58-8
50
7. 3 + 2 x ( 5 – 1 )
3+2 x 4
3+ 8
11
8. 5 ( - 3 +7) + 4 ( 8 % 2 ) -5 + 6 -9)
5 x (4)+4 x (4) – 2
20 + 16 -2
34
9.
10. 3 x 8 +9 (4 x 5)
24 + 9 x 20
33x 20
660

Trabajo

  • 1.
    1. 45-12+25-8 33 +25 -8 58-8 50 2. 35+(25-16)-12 35+9 – 12 44 - 12 32 3. 6 + 8 x 5 : 4 – 2 6 + 40 : 4 – 2 6 + 10 – 2 16 – 2 4. 45 + ( 4 x 9 – 6 ) : 3 - (8 – 3) 45 + 30 : 3 – 5 45 + 10 – 5 55 – 5 50 5. 4. ( ( -2) + ( -4) ) =4. (-2 )+ 4 . ( -4) =-8 + (-16) = -24 6. 45 – 12 + 25 – 8 33 + 25 -8 58-8 50
  • 2.
    7. 3 +2 x ( 5 – 1 ) 3+2 x 4 3+ 8 11 8. 5 ( - 3 +7) + 4 ( 8 % 2 ) -5 + 6 -9) 5 x (4)+4 x (4) – 2 20 + 16 -2 34 9. 10. 3 x 8 +9 (4 x 5) 24 + 9 x 20 33x 20 660