EJERCICIOS DE NÚMEROS ENTEROS
1-Resuelve las siguientes operaciones mentalmente:
1) -4 + 5 =
2) 4 – 12 =
3) -4 +11 =
4) 5- (-5) =
5) 8 + (-3) =
6) -6 -5 =
7) 8 – (-4) =
8) 4 – (-3-6) =
9) 6 + (4 – 8) =
10) 12 – (5 +3) =
11) 8 – (-9 + 1) =
12) 4 + (-3) – (6 + 4) =
13) 4 + (-2) + 4 – (6) =
14) 3- (-5) - [8 + (-3)] =
15) -6 – (-5 + 8) – (-3) =
16) 5 – (-3 +2) -5 =
17) 6 + 3 – (-5) =
18) 3 . (-5) =
19) -6 . 8 =
20) – 4 . (-2) =
21) -15 . 6 =
22) 8 . 13 =
23) 7 . (-3) =
24) 3 . (-3) . (-6) =
25) -3 . (-5) . (-1) .5 =
26) 5 . 3. (-6) . (-4) =
27) 3. (-3) . (-5) . (-7) =
28) (+3) . (-3) . (-3) =
29) (-3) . (+3) . (+3) . (+3) =
30) (-3). (+3) . (+3) =
31) (-3). (+3) . (+3) .(-3) =
32) 12 : (-2) =
33) -42 : 6=
34) -20 : (-5) =
35) 55 : 0 =
36) 60 : 1 =
37) 0 : -4 =
38) 3 + (-5) . (4-3)=
39) 15 : 3 . 2 * 4=
40) (-6) : (-2) + 5 =
41) 5(3-1) : 2+6=
2-Completa la tabla siguiente:
a
|
b
|
c
|
a-b
|
(a + b) . c
|
a: (b - c)
|
a + b - c
|
1
|
-4
|
-2
| ||||
-3
|
-2
|
-1
| ||||
5
|
10
|
-10
| ||||
-1
|
5
|
6
|
3- Calcula:
1) -8 – 7 – (5 + 4) – 3 =
2) 7 + 2 + (8 – 3) – (5 – 2 ) =
3) – (4 – 3 ) + (5 – 2) – (7 + 3) =
4) -3 – 4 – (3 – 6 ) – (8 + 5 ) =
5) - [3 – (8 – 6) – (5 + 4)]=
6) – (8 – 4) - [3 – (4 – 6) - 2]=
7) - [- (7 + 8) + (4 – 3)] – 2=
8) –(5 – 4) – (2 – 4) - [(14 – 6) – (7 – 8)]=
9) –5 - (-9 +7)=
10) 3 – ( 6 – 10 + 24) =
11) 7 – (-15 +8 -9 ) =
12) –8 - ( -6 –5 +4) =
13) (-10 + 5 –1) – (-4 – 6) =
14) (-8 – 6 ) – (10 +2) =
16) 10 – [ 3 – ( -4 +2) –1 ] +1 =
17) 7 – (11 –8 + 6) – [ 10 – ( 7 – 2 +1 ) –2 ] =
18) - [(+4) – (-3) – (+6) + (-4)] =
19)- (8 + 3)- [(6 – 3) – (12 + 4)] =
20) 2 - [ (-5) –(7 – 3 + 12) + 2] =
21) [(+6) + (-4)](-5) =
22) [(-7 – (+4)](+6) =
4-Resuelve las siguientes operaciones:
1) 58 – 8 – 19 – 7- 6 =
2) 5 + 7 + 12 + 6 + 12 =
3) 432 : 2 : 3 : 6 : 2 =
4) 4 + 3 . 6 – 2 . 7 =
5) 4 . 3 + 2 . 5 - 2 =
6) 5 . 9 – 2 – 4 : 2 =
7) 2 + 5 . 6 : 2 – 4 . 3 =
8) [(24 : 2) : 12].6 =
9) 646:[4. (13 : 3)] =
10) (5 + 2) + 3 – (8 – 4) :2 =
11) 100 : (2 + 8) + (8 – 6) . 3 =
12) 5 . (5 + 5) – 2 – (3 + 5) =
13) (6 + 3 ). 2 – 8 : 4 =
14) 22 – (5 + 3 ) . 2 + (4 – 1) =
15) 25 - [13 – (6 + 3 )] + 4 . 5 =
16) 14 . (25 – 3) + 3 . 6 =
17) 6 . (17 + 4 ) – 15 . 2 – (7 – 3 ) =
18) 3(5 + 12) + 4 – 15:3 =
19) 112(15 – 8) + 27:(2 + 3) =
20) 13 – 5 + {8 – 3 . 2 +[14 – (2 + 3)]}
21) 5 – 14 + 2.3 - [11 – 5 + (15 – 2.14 :7)] =
5-Resuelve:
1. 6 – 2 =
2. 4 – 7 =
3. (-9) + 13 =
4. (-6) – 7 =
5. 27 – (-3) =
6. (-5) + (-3) =
7. (-8) – (+4) =
8. (-3) – (-9) =
9. 4 . 2 =
10. (-7) . 3 =
11. 3.(-4) =
12. (-8) . (-5) =
13. 6:3 =
14. -8 : 4 =
15. (-12) /4 =
16. (-28)/ (-2) =
17. 3 – 7 + 6 – 3 + 1 =
18. (-11) + 7 – 6 + 8 – 3 =
19. (-79 + (-9) – (-17) – (-13) =
20.(+8) + (+59 – (-10) – (+1) =
21. 150/(-3).2 =
22.(-6).3/(-2) =
23.3 – 7 - [(-1) – 8 + ((-3) – 1) -5]=
3 – (-5).{(-5) + 2 -[4 + 2.3 -1]}=