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Operações com potências 2

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Rita Sousa

这是一个关于7年级数学的操作与幂的工作表，包含多道运算题目，涉及负数、分数和基本的数学运算。每道题目都提供了简洁的表达式，要求学生计算并得出正确的结果。这份工作表旨在帮助学生掌握幂运算的基本概念和技能。

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Ficha de Trabalho de Matemática Tema: Operações com Potências 7º Ano Nome: ____________________________________________________Turma:______N.º____ 2  12   2   24    5 5 2 1)   R  24 2)  25  9    3  1  10 10 R  410 2  24  3) 12  20    8      6  3  R  (-8)7 10 4 14  10   12   28  4)   2   36       4     2   4  4  R 3 -6 2 2  18   36 27   100  5)             3   3 9   50  R 1   33   6)  24  6    2       2  4     3  R 6 3   2   1  7)   3          2   3   2  R  1/4  1  3  8)   3       2    2  4  R  -15/4  1  1  1 9)   2      2    2  3       2  2  2 R  12/10 5   1  10)    6  2    3    3   2  R  34/3  3  1 11)   3     3    3     2   4  2 R  5/2  1   1  2 2 12)      2        1   2    2   R  1/32 1  2  2 2 13)     1     2         1 1       2   3  3   3  R  -2
2 2 2  3   1  1  1 14)   1               2   2  2  3 R  7/4  3  1 2  1  1 15)       2       4  2    2   3  1  R  -19/32  1 2 2   1 16)   1           2  22   2   R  1/2  1  2     1 17)  3   2  1   2      2     3  3   3 R  24/75  1  1      3 18)  2   2 1  2    1   1 2  R  -2/3  1   2      2 19)  2   3  1   1      3     2  2   2 R  -12/13 2 2  1  1 3       20)  2  3 4 2  3 1 3     2 2 2 R  4/27  23  1   2  5    4  2 21)   2 1       2  3 2 R  -9/4 3 1 1 3 2 4 3   2  1   3  22)   2 4  2 4 R  -85/72
1 3   7 2 4  23)   2  3 5 11   2 3 R  47   5  3 1 5  24) 2  2  2  1 1      2  1  3  1  3 R  -3/5  3  2   3   2  25)    2    2  2  23    1     4 R  3/8 2  1  1       2  3  1 26)  3      2 3  1  1         1  2  3  R 8  2 1       5 27)  5 4  1  5   3      3  2 3  2  R  9/50 28)  1  3   3  10   2    3  3  0,2          4  3   2  R  -55/34  1   2     3 29)  2   3 1      3   2 2 2  R  -10/13  2 1       6 30)  3 2   2   1 2 1 2 R 1
4 6 7 1  1 1      :  31)    4 4 4 = 0, 252 R  1/4 16 32) 5 4 4 1     2,514  2 R  25/4 (1) 2   1   1 10 121 33)  0,1 = 1 2 3 R  1/10 1  22 34) 4 =  25   1    4  2  2    3      R  45

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Operações com potências 2

  • 1. Ficha de Trabalho de Matemática Tema: Operações com Potências 7º Ano Nome: ____________________________________________________Turma:______N.º____ 2  12   2   24    5 5 2 1)   R  24 2)  25  9    3  1  10 10 R  410 2  24  3) 12  20    8      6  3  R  (-8)7 10 4 14  10   12   28  4)   2   36       4     2   4  4  R 3 -6 2 2  18   36 27   100  5)             3   3 9   50  R 1   33   6)  24  6    2       2  4     3  R 6 3   2   1  7)   3          2   3   2  R  1/4  1  3  8)   3       2    2  4  R  -15/4  1  1  1 9)   2      2    2  3       2  2  2 R  12/10 5   1  10)    6  2    3    3   2  R  34/3  3  1 11)   3     3    3     2   4  2 R  5/2  1   1  2 2 12)      2        1   2    2   R  1/32 1  2  2 2 13)     1     2         1 1       2   3  3   3  R  -2
  • 2. 2 2 2  3   1  1  1 14)   1               2   2  2  3 R  7/4  3  1 2  1  1 15)       2       4  2    2   3  1  R  -19/32  1 2 2   1 16)   1           2  22   2   R  1/2  1  2     1 17)  3   2  1   2      2     3  3   3 R  24/75  1  1      3 18)  2   2 1  2    1   1 2  R  -2/3  1   2      2 19)  2   3  1   1      3     2  2   2 R  -12/13 2 2  1  1 3       20)  2  3 4 2  3 1 3     2 2 2 R  4/27  23  1   2  5    4  2 21)   2 1       2  3 2 R  -9/4 3 1 1 3 2 4 3   2  1   3  22)   2 4  2 4 R  -85/72
  • 3. 1 3   7 2 4  23)   2  3 5 11   2 3 R  47   5  3 1 5  24) 2  2  2  1 1      2  1  3  1  3 R  -3/5  3  2   3   2  25)    2    2  2  23    1     4 R  3/8 2  1  1       2  3  1 26)  3      2 3  1  1         1  2  3  R 8  2 1       5 27)  5 4  1  5   3      3  2 3  2  R  9/50 28)  1  3   3  10   2    3  3  0,2          4  3   2  R  -55/34  1   2     3 29)  2   3 1      3   2 2 2  R  -10/13  2 1       6 30)  3 2   2   1 2 1 2 R 1
  • 4. 4 6 7 1  1 1      :  31)    4 4 4 = 0, 252 R  1/4 16 32) 5 4 4 1     2,514  2 R  25/4 (1) 2   1   1 10 121 33)  0,1 = 1 2 3 R  1/10 1  22 34) 4 =  25   1    4  2  2    3      R  45