Vamos resolver as seguintes expressões numéricas …
Vamos resolver as seguintes expressões numéricas com números inteiros.
1) (- 2).(- 3) + (- 1 + 5) R = 10
2) (- 12 + 10).(- 20 + 30) R = - 60
3) (+ 20 - 5) x (+ 12 - 4) - (- 1 + 3) R = 118
4) (- 2) x (- 5 + 3) - (- 4 + 7) x (+ 4 - 1) R = - 5
5) (+ 12 + 3) : (- 10 + 5) - (- 1 + 8) R = - 10
6) (- 8) : (+ 4 - 2) - (- 12) : (- 5 + 7) R = 2
7) (- 8) : (- 1 + 5) - ( - 2 + 8) x (+ 5 + 10 - 50) R = 208
8) (- 5 + 12) x (- 5 + 4) + (+ 8 - 5):(- 1 + 4) R = 0
9) (+ 5 - 4) x [- 12 + (- 5 + 15):(+ 1 - 3)] R = - 17
10) (- 12 + 25) - {- 2 - [- (+ 2) x (- 10 + 5)]} R = 25
11) (- 5 + 7)2 - (- 12 + 9)2 - [- (- 4) x (- 5 + 4)]2 R = - 24
12) - {- 12 - (- 8)2 - [- 2 + 5 x (- 3 + 9)]} R = 104
13) {- 20 + (- 7 + 9)3 - [- 7 + 9 - (- 1 + 5)] - (- 1)3} R = - 10
14) - 52 + (- 3) x (- 1 + 7) - [+ 3 - 5 x (- 1 + 2)] R = - 41
15) {12 - (- 5 + 9)2 - [+ 5 - (- 2 + 13)]0 - (- 5 + 3)} R = - 3
16) [pic] R = - 12
17) [pic] R = 4
Resolva as seguintes expressões numéricas com números naturais.
1) 96 - (48 - 18 + 20) R = 46
2) 200 - (40 - 8 + 150) R = 18
3) 80 + 2 - (74 + 20 - 40) R = 28
4) (80 - 40 + 25) - (100 - 60 + 15) R = 10
5) (80 - 75 + 3) + (70 + 54) R = 24
6) (8 x 2 - 10) + (18 - 4 x 4) R = 8
7) 80 : (2 x 4 + 2) - 7 R = 1
8) (20 : 10 + 10) : (5 x 2 + 2) R = 1
9) 100 - {2 x [18 - (4 x 2 - 6)]} R = 68
10) 53 - 24 x 4 R = 61
11) (5 x 2 - 9)3 + (24 - 8 x 2) R = 1
12) (5 + 2 - 3)2 : 8 + (32 - 2 x 3) R = 5
13) 53 - [2 + (5 - 3 + 2)2] R = 107
14) (4 + 2)2 : 4 - [20 - (1 + 3)2] R = 5
15) (5 + 2 - 3)2 : 8 + (32 - 2 x 3) R = 5
16) [pic] R = 7
17) [pic] R = 4
18) [pic] R = 0
19) [pic] R = 85
20) [pic] R = 15
Calcule o valor das seguintes expressões numéricas com números racionais:
|1. [pic] |2. [pic] |
|3. [pic] |4. [pic] |
|5. [pic] |6. [pic] |
|7. [pic] |
|8. [pic] |9. [pic] |
|10. [pic] |11. [pic] |
|12. [pic] |13. [pic] |
|14. [pic] |15. [pic] |
|16. [pic] |17. [pic] |
|18. [pic] |19. [pic] |
|20.[pic] |
Vamos resolver as seguintes expressões numéricas em Q(números racionais).
|a) – 2 + 5 ( - 3+ 4) |k) [pic] |
|b) 7 – 5 + 4 ( -8 + 3) |l) [pic] |
|c) – 4 + 5 – (3 + 2) |m) [pic] |
|d) – 22 – 5 – (3 + 2) - 1 |n) [pic] |
|e) (-5)2 – [4 – ( 3 + 7)] |o) [pic] |
|f) (7 – 4)2 – [ - 2 + 4 (2 – 3)]3 |p) [pic] |
|g) (- 5 + 2)2 – (4 + 3 – 9)3 |q) [pic] |
|h) [pic] |r) [pic] |
|i) [pic] |s) [pic] |
|j) [pic] |t) [pic] |
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