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一、填空题
1. $14^2 =$
2. $7^3 =$
3. $(-4)^2 =$
4. $-4^2 =$
5. $-(-4)^2 =$
6. $(-3)^3 =$
7. $(-0.2)^3 =$
8. $-1^{208} =$
9. $-\dfrac{3^3}{4} =$
10. $(-\dfrac{3}{4})^3 =$
11. $(-4×3)^2 =$
12. $-4×3^2 =$
1. $14^2 =$
196
2. $7^3 =$
343
3. $(-4)^2 =$
16
4. $-4^2 =$
-16
5. $-(-4)^2 =$
-16
6. $(-3)^3 =$
-27
7. $(-0.2)^3 =$
-0.008
8. $-1^{208} =$
-1
9. $-\dfrac{3^3}{4} =$
$-\dfrac{27}{4}$
10. $(-\dfrac{3}{4})^3 =$
$-\dfrac{27}{64}$
11. $(-4×3)^2 =$
144
12. $-4×3^2 =$
-36
答案
1. 196
2. 343
3. 16
4. -16
5. -16
6. -27
7. -0.008
8. -1
9. $-\dfrac{27}{4}$
10. $-\dfrac{27}{64}$
11. 144
12. -36
2. 343
3. 16
4. -16
5. -16
6. -27
7. -0.008
8. -1
9. $-\dfrac{27}{4}$
10. $-\dfrac{27}{64}$
11. 144
12. -36
二、计算题
13. $(-5)^2 × (-\dfrac{1}{3})$
14. $-18 ÷ (-\dfrac{1}{3})^2$
15. $(-9^2) ÷ (-3)^2$
16. $(-\dfrac{4}{3})^3 × (-\dfrac{3}{4})^4$
17. $(-3^2) + (-8)^2$
18. $(-4)^3 - (-9)^2$
19. $\dfrac{2^3}{5} × (-\dfrac{5}{4})^2$
20. $-3^2 ÷ (-2)^3 × (-\dfrac{1}{8})$
13. $(-5)^2 × (-\dfrac{1}{3})$
14. $-18 ÷ (-\dfrac{1}{3})^2$
15. $(-9^2) ÷ (-3)^2$
16. $(-\dfrac{4}{3})^3 × (-\dfrac{3}{4})^4$
17. $(-3^2) + (-8)^2$
18. $(-4)^3 - (-9)^2$
19. $\dfrac{2^3}{5} × (-\dfrac{5}{4})^2$
20. $-3^2 ÷ (-2)^3 × (-\dfrac{1}{8})$
答案
13. $-\dfrac{25}{3}$
14. -162
15. -9
16. $-\dfrac{3}{4}$
17. 55
18. -145
19. $\dfrac{5}{2}$
20. $-\dfrac{9}{64}$
14. -162
15. -9
16. $-\dfrac{3}{4}$
17. 55
18. -145
19. $\dfrac{5}{2}$
20. $-\dfrac{9}{64}$
